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Defence & Security Current Affairs

Latest Defence & Security current affairs and general knowledge for UPSC, SSC, Banking and State PCS — with key points and exam facts.

India-Africa Forum Summit (IAFS) 2026 to focus on development initiatives and strategic footprint

The Fourth India-Africa Forum Summit (IAFS) is scheduled for May-end 2026, marking its return after more than a decade. The summit will prioritize development initiatives, education, capacity building, diplomatic expansion, and defence cooperation. It holds significant importance amidst global supply chain disruptions, particularly following the U.S.-Israel attack on Iran. India aims to enhance the implementation rate of its commitments to African nations and encourages Foreign Direct Investment from Indian businesses, shifting focus from small and medium enterprises to larger investments from Global South leaders.

  • The Fourth India-Africa Forum Summit (IAFS) in 2026 will focus on development initiatives, education, capacity building, and defence cooperation.
  • The summit is strategically significant given the current global supply chain disruptions.
  • India aims to improve the implementation of its commitments to African countries.
22 Apr 2026 Read more

India must draw a red line on U.S. unilateral sanctions for strategic autonomy

This article argues that India's compliance with U.S. unilateral sanctions has negatively impacted its economy, energy sourcing, and foreign policy, leading to increased demands from the U.S. It highlights that India's decision to ignore certain sanctions, such as for the Russian S-400 systems, proved beneficial. The author advocates for India to unequivocally denounce U.S. unilateral sanctions to safeguard its strategic autonomy and achieve energy independence. The piece also criticizes the U.S. for its extensive use of sanctions compared to other global powers and international bodies.

  • U.S. unilateral sanctions have adversely affected India's economic growth, energy sourcing, and foreign policy objectives.
  • India's past compliance with U.S. sanctions has not curbed U.S. demands, instead leading to additional pressures for conformity.
  • Ignoring U.S. sanctions, such as for the S-400 air defence systems, has proven beneficial for India without incurring penalties.
22 Apr 2026 Read more

US-Iran talks on ceasefire extension amid Strait of Hormuz blockade

US President Donald Trump announced that US negotiators would head to Pakistan for talks with Iran to extend a ceasefire, though Iran did not immediately confirm. The Strait of Hormuz remains blocked due to Iranian threats and a US blockade on Iranian ports. Iran's chief negotiator stated that ships would not pass while the US blockade is in effect. Trump threatened to destroy civilian infrastructure in Iran if it does not accept the US deal. Iran's Foreign Ministry condemned the US blockade as 'unlawful and criminal,' a ceasefire violation, and a 'war crime.' New proposals have been received, and Pakistani mediators are arranging more talks, following previous unsuccessful direct talks in Islamabad.

  • US President Trump announced talks with Iran in Pakistan to extend a ceasefire, which Iran did not immediately confirm.
  • The Strait of Hormuz remains blocked due to a US blockade on Iranian ports and Iranian threats, with Iran's chief negotiator stating no retreat in diplomacy.
  • Trump threatened to destroy civilian infrastructure, including power plants and bridges, in Iran if it does not accept the US deal.
20 Apr 2026 Read more

Israel Establishes "Yellow Line" Demarcation in Southern Lebanon Amid Ceasefire

The Israeli military announced the establishment of a "Yellow Line" demarcation in southern Lebanon, similar to the one dividing Gaza, following a 10-day ceasefire agreement with Lebanon and Hezbollah. Israeli forces reported striking militants who violated the ceasefire by approaching the line, asserting their right to self-defense despite the truce. This development comes after six weeks of conflict and ongoing negotiations to consolidate the ceasefire, ensure Israeli troop withdrawal, and resolve border disputes. Lebanese President Joseph Aoun emphasized the crucial nature of direct negotiations with Israel to achieve these goals.

  • Israel has established a "Yellow Line" demarcation in southern Lebanon, akin to the one in Gaza.
  • This line aims to separate Israeli forces from territory where militants operate, even during a ceasefire.
  • Israeli forces engaged militants violating the ceasefire by approaching the "Yellow Line," citing self-defense.
19 Apr 2026 Read more

Iran Closes Strait of Hormuz Again Amid U.S. Blockade and Escalating Tensions

Iran has once again closed the Strait of Hormuz, a crucial global oil transit waterway, in retaliation for the continued U.S. blockade of Iranian ports. This escalation follows a brief reopening and comes amidst ongoing tensions and failed negotiations between Iran and the U.S. Iran's joint military command declared full control over the strait and warned of continued blockades as long as U.S. sanctions persist. The move threatens to deepen the global energy crisis and reignite conflict, with both sides accusing each other of miscalculations and blackmail, as a fragile ceasefire approaches its end.

  • Iran has re-closed the Strait of Hormuz, a vital oil transit route, in response to the U.S. blockade of its ports.
  • The closure, following a brief reopening, escalates tensions and threatens global energy markets.
  • Iran's military asserted full control over the strait, vowing to maintain the blockade until U.S. sanctions are lifted.
19 Apr 2026 Read more

Census Portal Displays Chinese Name for Pasighat, Arunachal Pradesh; Issue Resolved

India's ongoing Census self-enumeration portal briefly displayed Pasighat in Arunachal Pradesh as "Medog," a town in China. A retired Indian Air Force officer first raised the concern, highlighting the sensitivity of such territorial depictions. The Registrar-General and Census Commissioner of India quickly acknowledged and resolved the issue, stating it was raised with the map services provider. India has consistently rejected China's attempts to rename places in Arunachal Pradesh, reiterating that the state is an integral part of India and that such actions cannot alter the undeniable reality of its territory.

  • The Census of India's self-enumeration portal mistakenly showed Pasighat, Arunachal Pradesh, with a Chinese name, "Medog."
  • The error was promptly identified by a retired IAF officer and subsequently resolved by Census officials.
  • India maintains a firm stance against China's attempts to rename places in Arunachal Pradesh, asserting the state's integral status.
19 Apr 2026 Read more

Iran declares Strait of Hormuz open amid US blockade continuation

Iran declared the Strait of Hormuz "completely open" for commercial vessels, following a 10-day ceasefire between Israel and Hezbollah in Lebanon. However, US President Donald Trump stated that the US blockade of Iranian ports would continue until a comprehensive deal is reached between Tehran and Washington. Oil prices fell after the strait's reopening announcement. The Strait of Hormuz is a crucial waterway, through which about 20% of the world's crude oil supply and a significant share of global LNG exports pass, linking the Persian Gulf to the Gulf of Oman and the Arabian Sea.

  • Iran announced the Strait of Hormuz is fully open for commercial shipping after a ceasefire in Lebanon.
  • The US, however, maintained its blockade on Iranian ports, stating it would continue until a full deal with Iran is finalized.
  • The Strait of Hormuz is a vital global chokepoint for oil and LNG shipments.
18 Apr 2026 Read more

Explaining the Strait of Hormuz's critical role in global energy flows and trade

The Strait of Hormuz has become a focal point of an energy and security crisis, following US and Israeli strikes on Iran and subsequent tightening of restrictions by Tehran. It is the world's most important maritime chokepoint, connecting the Persian Gulf to the Gulf of Oman and the Indian Ocean, serving as the primary export route for oil and LNG from the region. Approximately one-fifth of global oil consumption passes through this narrow strait daily, with nearly 80% of these energy flows destined for Asia. Blockades or threats in such chokepoints can severely disrupt shipping, raise energy prices, and impact global supply chains. International law, under the UN Convention on the Law of the Sea, guarantees "transit passage" through such straits, but enforcement depends on naval strength.

  • The Strait of Hormuz is a critical maritime chokepoint for global energy and trade, especially for oil and LNG.
  • It connects the Persian Gulf to the Gulf of Oman and the Indian Ocean, with a significant portion of its traffic heading to Asia.
  • Disruptions in the Strait can lead to sharp increases in energy prices and global supply chain issues.
16 Apr 2026 Read more

New Deportation Policy Seeks Tighter Norms for Illegal Migrants from Bangladesh and Myanmar

The Union Home Ministry has formulated a new deportation policy, directing states to establish special task forces in each district to identify, detect, and deport illegal migrants from Bangladesh and Myanmar. States are required to provide monthly status reports and operationalize 'holding centres/camps' with strict security measures. The policy mandates a 90-day limit for verifying antecedents, cancellation of identity documents, and blacklisting. It also introduces a 'Foreigners Identification Portal (FIP)' for biometric data capture and emphasizes immediate return of intercepted migrants at borders, while outlining guidelines for humane conditions in holding centres.

  • The Union Home Ministry has introduced a new policy to detect, identify, and deport illegal migrants from Bangladesh and Myanmar.
  • States are mandated to form special task forces in each district and submit monthly status reports on foreign nationals.
  • 'Holding centres/camps' with high security are to be established to restrict migrants' movement until deportation.
15 Apr 2026 Read more

U.S. blockades Iranian ports; Iran threatens regional ports in retaliation

The U.S. military initiated a blockade of Iranian ports as part of President Donald Trump's efforts to force Tehran to open the Strait of Hormuz and accept a deal to end the six-week-long conflict. This followed the failure of peace talks between the U.S. and Iran. The U.S. Central Command announced the blockade would target all vessels entering or departing Iranian ports and coastal areas. In response, Iran issued threats that "Security in the Persian Gulf and the Sea of Oman is either for everyone or for NO ONE," warning that "NO PORT in the region will be safe," escalating tensions and posing significant risks to the global economy.

  • The U.S. military commenced a blockade of Iranian ports to pressure Tehran into opening the Strait of Hormuz and accepting a peace deal.
  • This action followed the breakdown of peace talks aimed at resolving the six-week-long conflict between the U.S. and Iran.
  • The U.S. Central Command specified that the blockade would apply to all vessels accessing Iranian ports and coastal areas.
14 Apr 2026 Read more

India Rejects China's Fictitious Renaming of Indian Territories, Including Arunachal Pradesh

India has reiterated its strong rejection of China's attempts to assign 'fictitious names' to places within Indian territory, including Arunachal Pradesh. The Ministry of External Affairs stated that such 'mischievous' actions 'detract' from ongoing normalization efforts in bilateral relations. India emphasized that these territories were, are, and will always remain an integral and inalienable part of India. The statement also criticized China for creating a new county, Cenling, in Xinjiang province near Pakistan-occupied Kashmir (PoK), which violates India's sovereignty and aims to secure Xinjiang amidst Uyghur insurgency and terrorist groups.

  • India strongly rejects China's practice of assigning fictitious names to places within Indian territory.
  • The Ministry of External Affairs asserts that Arunachal Pradesh is an integral and inalienable part of India.
  • China's actions are seen as detrimental to efforts to stabilize and normalize bilateral ties.
13 Apr 2026 Read more

India's Prototype Fast Breeder Reactor: Ambition, challenges, and accountability concerns

India's Prototype Fast Breeder Reactor (PFBR) in Kalpakkam, Tamil Nadu, achieved criticality, marking a milestone in the country's nuclear ambitions. FBRs are designed to 'breed' more nuclear fuel than they consume and are crucial for India's three-stage nuclear power program, aiming for energy security by utilizing plutonium and thorium. However, the article highlights concerns regarding the Department of Atomic Energy's (DAE) limited parliamentary and judicial oversight, lack of transparency, and the inherent risks of FBR technology, such as using liquid sodium as a coolant. Past international failures of FBRs and the PFBR's exclusion from IAEA purview raise questions about accountability and safety.

  • India's Prototype Fast Breeder Reactor (PFBR) in Kalpakkam has achieved criticality, a significant step in its nuclear program.
  • FBRs are vital for India's three-stage nuclear power program, aiming for fuel efficiency and energy security.
  • Concerns exist regarding the DAE's lack of transparency, minimal oversight, and the inherent risks associated with FBR technology, such as the use of liquid sodium coolant.
12 Apr 2026 Read more

U.S.-Iran ceasefire deal: Pakistan's mediation and regional implications

A two-week ceasefire between the U.S. and Iran was announced, mediated by Pakistan, following escalating tensions and a U.S.-Israeli bombing campaign. The process involved a 15-point plan from the U.S. and subsequent backchannel discussions, with Pakistan playing a crucial intermediary role due to its historical diplomatic ties and communication channels with both sides. The ceasefire aims to pave the way for a permanent truce, with ongoing trilateral talks in Islamabad involving economic, military, legal, and nuclear experts. Israel has reacted negatively, bombing Hezbollah targets, while Iran has adhered to the ceasefire. The negotiations face challenges from Israeli opposition and the need to bridge wide gaps between proposals.

  • A temporary two-week ceasefire between the U.S. and Iran was announced, following a period of intense conflict.
  • Pakistan played a key mediation role, leveraging its historical diplomatic channels with the U.S., Iran, and Gulf monarchies.
  • The ceasefire was initiated after the U.S. sent a 15-point plan to Iran via Pakistan's Gen. Munir.
12 Apr 2026 Read more

First Indian vessel crosses Strait of Hormuz after U.S.-Iran ceasefire

An Indian-flagged liquefied petroleum gas (LPG) tanker, Jag Vikram, successfully crossed the Strait of Hormuz, marking the first such transit by an Indian vessel since a temporary two-week ceasefire between the U.S. and Iran was announced. Ship-tracking data confirmed the tanker's movement between Friday night and Saturday morning, and a government statement provided an update on developments in West Asia. The vessel, carrying approximately 20,400 tonnes of LPG cargo with 24 seafarers, is owned by Mumbai-based Great Eastern Shipping Company and is expected to arrive in Mumbai on April 15, 2026. This transit is significant as it follows a period of heightened tensions in the region.

  • An Indian-flagged LPG tanker, Jag Vikram, completed the first transit through the Strait of Hormuz by an Indian vessel since a U.S.-Iran ceasefire.
  • The transit occurred between Friday night and Saturday morning, following a temporary two-week ceasefire announcement between the U.S. and Iran.
  • The vessel carried 20,400 tonnes of LPG cargo and had 24 seafarers onboard.
12 Apr 2026 Read more

ISRO successfully completes second Air Drop Test (IADT-02) for Gaganyaan mission readiness

The Indian Space Research Organisation (ISRO) successfully completed the second Integrated Air Drop Test (IADT-02) at the Satish Dhawan Space Centre in Sriharikota. A simulated Crew Module, weighing 5.7 tonnes (equivalent to the uncrewed Gaganyaan G1 mission module), was lifted by an Indian Air Force Chinook helicopter to an altitude of about 3 km and released over a designated drop zone in the sea. Ten parachutes of four types deployed in a precise sequence, gradually reducing the descent velocity for a safe touchdown. The module was successfully recovered in coordination with the Indian Navy. This test validated the parachute-based deceleration systems, marking a significant step towards the readiness of the Gaganyaan G1 Mission, with support from IAF, Indian Navy, and DRDO. The first test, IADT-01, was accomplished on August 24, 2025.

  • ISRO successfully conducted the second Integrated Air Drop Test (IADT-02) for the Gaganyaan mission at Sriharikota.
  • The test involved dropping a 5.7-tonne simulated Crew Module from a 3 km altitude using an Indian Air Force Chinook helicopter.
  • The successful deployment of ten parachutes and subsequent recovery of the module validated the parachute-based deceleration systems.
11 Apr 2026 Read more

Gaganyaan Mission: Ensuring Safe Return of Indian Astronauts to Earth

The article details the process for the safe return of Indian astronauts from the Gaganyaan mission. The crew module, re-entering Earth's atmosphere at 7,800 m/s, will primarily shed kinetic energy through aerobraking. A multi-stage parachute system will then be deployed within 12 km of the ground to further reduce velocity for a soft landing. Sea landings are preferred by countries lacking vast empty territories, as water absorbs impact and allows for higher landing speeds (7-9 m/s). The landing zone is an elongated ellipse due to limited lateral control. Recovery operations, led by the Indian Navy, will involve predictive tracking, electronic signaling, and visual aids to locate and secure the module after splashdown in the Bay of Bengal.

  • The Gaganyaan crew module will re-enter Earth's atmosphere at 7,800 m/s, primarily using aerobraking to shed kinetic energy.
  • A multi-stage parachute system will be deployed to further reduce velocity for a soft landing, with sea landings preferred for their impact absorption and higher tolerable speeds.
  • The landing zone is an elongated ellipse due to the module's high re-entry speeds and limited lateral control.
10 Apr 2026 Read more

Mediation's Enduring Relevance in Global Conflict Resolution Amidst West Asia Crisis

Amidst the West Asia crisis, the importance of mediation in conflict resolution is gaining prominence. Historically, mediation has proven effective, with theories like Bercovitch's Contingency Model and Zartman's 'Ripeness' theory explaining its success. International frameworks, including the Hague Conventions and the UN Charter (Article 33), legitimize and support mediation. Notable examples include Kofi Annan in Kenya, the Oslo Accords, and the Camp David Accords. The article discusses China's potential role as a mediator in the Iran conflict, given its economic leverage and consistent anti-war stance, highlighting that successful mediation requires strategic calculation and willingness from conflicting parties.

  • Mediation remains a crucial tool for conflict resolution, with a long history and established international frameworks.
  • Theories like 'Mutually Hurting Stalemate' and the Contingency Model explain the conditions and factors for successful mediation.
  • International legal instruments, including the UN Charter, provide principles and guidance for mediation efforts.
8 Apr 2026 Read more

Sattankulam Verdict: A Call for Police Accountability and End to Excessive Force

The conviction of nine policemen in the Sattankulam custodial death case, involving trader Jayaraj and his son Benicks, highlights the critical role of an engaged judiciary, courageous witnesses, and determined investigation in delivering justice. The trial court's reliance on CBI scientific evidence, despite attempts to destroy it, led to the convictions. This verdict sends a strong message against the misuse of force by law enforcement, emphasizing that custodial deaths will not go unpunished and underscoring the need for systemic reckoning to sensitize the police force against excessive force.

  • Nine policemen were convicted in the Sattankulam custodial death case of Jayaraj and Benicks.
  • The verdict underscores the importance of judicial activism, witness courage, and scientific investigation.
  • The case involved torture and trumped-up charges, leading to the deaths of the victims in judicial custody.
8 Apr 2026 Read more

Iran declares Strait of Hormuz status irreversible, rejects US hegemony

Iran's Islamic Revolutionary Guard Corps (IRGC) declared that the Strait of Hormuz, a critical international waterway, has undergone "irreversible strategic changes" and will no longer be subject to foreign hegemony, particularly from the U.S. The IRGC Navy stated that recent regional developments have established a new reality, asserting Iran's right to defend its sovereignty and ensure uninterrupted energy flow. This statement followed a social media post by former U.S. President Donald Trump threatening Iran over the Strait. Iran's Foreign Ministry dismissed Trump's ultimatum, accusing Washington of "war crimes" and "deliberate abuse of power." Iran plans a new indigenous security architecture in the Persian Gulf based on littoral states guaranteeing security.

  • Iran's IRGC declared that the Strait of Hormuz has undergone "irreversible strategic changes" and will no longer be under foreign hegemony.
  • Iran asserts its right to defend its sovereignty in the Persian Gulf and ensure the uninterrupted flow of energy through the Strait.
  • The statement came after former U.S. President Donald Trump's threats regarding opening the Strait.
7 Apr 2026 Read more

China's Energy Security Resilience Amidst Iran War and Global Crises

This article analyzes why China has remained largely unaffected by the Iran war and global energy crises, unlike India. China's robust energy security stems from two decades of strategic planning, including building 120 days of strategic petroleum reserves (SPR) and diversifying crude oil imports through pipelines from Central Asia and Russia, which now account for 20% of its total imports. Additionally, China's proactive engagement in conflict zones for oil deals and its climate strategies, such as being the largest consumer of electric vehicles, have reduced its oil demand. The current economic slowdown in China also contributes to lower overall energy consumption, bolstering its resilience.

  • China's energy security is robust due to strategic petroleum reserves (SPR) and diversified import sources.
  • Pipelines from Central Asia and Russia now account for 20% of China's crude oil imports.
  • China's proactive engagement in conflict zones for oil deals has helped diversify its import sources.
6 Apr 2026 Read more

BSF Plans Crocodile and Snake 'Patrols' on Bangladesh Border

The Border Security Force (BSF) has been directed to explore the feasibility of using reptiles like snakes and crocodiles in riverine stretches along the Bangladesh border. This initiative, in line with Home Minister Amit Shah's directions, aims to prevent infiltration and criminal activities in areas difficult to fence due to floods and dense population. The internal communication from BSF headquarters on March 26 highlights challenges such as procuring reptiles and assessing their impact on local populations. The article also details the progress and remaining gaps in border fencing along the India-Bangladesh border.

  • BSF field units are exploring the use of reptiles (snakes and crocodiles) for patrolling riverine stretches of the Bangladesh border.
  • This directive aligns with Home Minister Amit Shah's instructions to prevent infiltration and criminal activities in challenging terrains.
  • The difficult topography, flood-prone nature, and dense population make physical fencing challenging in these areas.
6 Apr 2026 Read more

Donald Trump's push to withdraw U.S. from NATO and its implications

Former U.S. President Donald Trump has expressed strong intent to withdraw the U.S. from NATO, calling the alliance "obsolete" and a "paper tiger." His discontent stems from European allies' refusal to support U.S. military operations in the war against Iran and their perceived lack of contribution to defence spending. NATO, formed in 1949 for collective security against the Soviet Union, now has 32 members. A U.S. exit, though legally complex and requiring a one-year notice to the U.S. government itself, would severely weaken the Western coalition and reshape global security structures, potentially strengthening powers like Russia and China.

  • Donald Trump has repeatedly expressed a desire for the U.S. to withdraw from NATO, citing allies' insufficient defence spending and lack of support for U.S. operations.
  • NATO was established in 1949 as an inter-governmental military grouping for collective security, initially against the Soviet threat.
  • A U.S. withdrawal would be legally complex, requiring a one-year notice as per Article 13 of the North Atlantic Treaty.
5 Apr 2026 Read more

INS Aridhaman, India's third nuclear-powered submarine, commissioned into naval fleet

India has formally commissioned INS Aridhaman (S4), its third nuclear-powered submarine of the Arihant-class (SSBN), in Visakhapatnam. Defence Minister Rajnath Singh presided over the quiet ceremony. This submarine is a critical component of India's strategic weapons programme and nuclear triad, enabling the launch of nuclear-tipped missiles from air, land, and sea. Aridhaman, at 7,000 tonnes, is larger and more powerful than its predecessors, INS Arihant (commissioned 2016) and INS Arighaat (commissioned August 2024). The project, initially known as the Advanced Technology Vessel (ATV) project, is executed by the Ship Building Centre (SBC).

  • INS Aridhaman (S4), India's third nuclear-powered ballistic missile submarine (SSBN), has been commissioned.
  • The submarine is part of India's strategic weapons programme and strengthens its nuclear triad capability.
  • Aridhaman is larger (7,000 tonnes) and has more firepower compared to its predecessors, INS Arihant and INS Arighaat.
4 Apr 2026 Read more

India and Azerbaijan reset ties after tensions over Operation Sindoor

India and Azerbaijan have decided to reset their bilateral relations after a year of tensions, following the 6th round of Foreign Office consultations in Baku. The talks, led by MEA Secretary (West) Sibi George and Azerbaijan's Deputy Foreign Minister Elnur Mammadov, are the first since 2022. Key issues discussed included trade, technology, tourism, pharmaceuticals, energy, culture, and counter-terrorism. Tensions arose from Azerbaijan's condemnation of India's strikes on Pakistani sites during Operation Sindoor and its close strategic partnership with Pakistan, contrasting with India's support for Armenia in the Nagorno Karabakh dispute.

  • India and Azerbaijan are resetting bilateral ties after a year of tensions.
  • The 6th round of Foreign Office consultations addressed trade, energy, and counter-terrorism.
  • Tensions stemmed from Azerbaijan's condemnation of India's Operation Sindoor strikes on Pakistani sites and its support for Pakistan.
4 Apr 2026 Read more

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