Current Affair Category: Defence & Security

Why in News? The Axiom-4 mission, set to carry Indian astronaut Shubhanshu Shukla and three others to the International Space Station (ISS), is now scheduled to launch no earlier than June 8, 2025, according to NASA Relevance : UPSC Pre & Mains Prelims :  ISS/AXIOM Mission Mains :  GS 3 Key Points: This private mission, […]

Why in news ?  The Indian Space Research Organisation (ISRO) is set for the 101st launch with the PSLV-C61/EOS-09 mission on 18th May 2025, aiming to enhance India’s all-weather surveillance capabilities. Relevance : UPSC  Pre & Mains Prelims : About the mission/ other related satellites Mains :   GS 3- Science &  Tech. About PSLV-C61 / […]

Why in News ?   The Indian Air Force (IAF) showcased its Integrated Air Command and Control System (IACCS) during a briefing on Operation Sindoor, demonstrating its effectiveness in neutralizing aerial threats from Pakistan during a recent military conflict. This highlights India’s robust air defense infrastructure. Relevance :  UPSC Pre & Mains Prelims: IACCS/) Akashteer System […]

Why in News? India’s recent retaliatory strikes as part of Operation Sindoor have drawn significant attention, particularly concerning rumors about targeting Pakistan’s Kirana Hills, a site reportedly linked to nuclear storage. Relevance : UPSC Pre & Mains Prelims :  Kirana Hills Mains :  GS 2 –IR/ GS 3 –Security  Major Nuclear Sites: Kahuta (Khan Research […]

Why in News ?   The Ministry has directed all States and Union Territories to grant emergency procurement powers to civil defence authorities due to the current security threats and hostile attacks, particularly along the western border.. The Directorate’s letter, referencing Section 11 of the Civil Defence Rules, 1968, emphasizes that State governments are empowered to […]

The S-400 Triumf (NATO: SA-21 Growler), developed by Russia’s Almaz-Antey, is one of the most advanced long-range surface-to-air missile (SAM) systems globally, designed to counter aircraft, drones, cruise missiles, and ballistic missiles. Relevance : UPSC Pre & Mains Prelims : The S-400 Triumf)/other defence systems Mains :  GS 2 –IR/ GS 3-Security /Science & Dev.) […]

Why in News?  India’s reported use of Harop drones in strikes on Pakistani targets (e.g., Lahore, Karachi, Rawalpindi) during Operation Sindoor, following a terror attack in Pahalgam. About  Harop  Drone : The Harop, developed by Israel Aerospace Industries (IAI), is a loitering munition, also known as a suicide or kamikaze drone, combining features of an […]

Why in News? India has recently  conducted  precision of strikes under the Operation Sindoor at various terrorists locations in PoK. Relevance : UPSC Pre & Mains Prelims : Operation Sindoor/ precision-guided munitions (PGMs)/ JDAM Mains :   GS Paper 2/GS Paper III: Internal Security and Challenges What is  precision strike? The term “precision strike” refers to […]

Why in News? The U.S. and Ukraine signed a critical minerals and natural resources agreement on May 1, 2025, after months of tense negotiations. Relevance :  UPSC Pre & Mains Prelims: REE/Their uses/distributions Mains : GS Paper 1 (Geography) / GS Paper 3 (Technology and Economy), particularly concerning national security and self-reliance.  Key Points of deal […]

Why in News ?  The Cosmologists has recently  studied how matter clumps together in the universe post-Big Bang, forming galaxies, clusters, and cosmic structures. The concept of “clumpiness” is quantified using a parameter called Sigma 8 (S8), which measures the amplitude of matter fluctuations on scales of 26 million light-years. Relevance : Prelims : Sigma […]