Defence Current Affairs MCQs

Notes:
The Indian Navy announced that INS Aridhaman, India’s third Nuclear-Powered Ballistic Missile Submarine (SSBN), will soon be inducted. It is the second submarine of the Arihant class, built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre, Visakhapatnam. It has a displacement of 6,000 tonnes on surface and 7,000 tonnes submerged, powered by an 83 Megawatt (MW) pressurized water reactor from Bhabha Atomic Research Centre (BARC). INS Arighaat is India’s second indigenously built Nuclear-Powered Ballistic Missile Submarine (SSBN), following the first SSBN INS Arihant.

Notes:
Exercise Ekatha 2025 was held in Maldives from 15–17 December 2025. Exercise Ekatha, established in 2017, is an annual bilateral maritime exercise, conducted between the Indian Navy and the Maldives National Defence Force (MNDF). The 8th edition focused on interoperability and operational synergy through technical/combat diving, boarding operations, firing drills, demolition, explosive handling, asymmetric warfare, and special heli-borne drills.

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Indian Coast Guard Ship (ICGS) Sarthak is an Offshore Patrol Vessel (OPV) that made a port call at Chabahar, Iran. It is the 4th of 5 Offshore Patrol Vessel (OPVs) built by Goa Shipyard Limited for the Indian Coast Guard (ICG). Offshore Patrol Vessels (OPVs) are multi-mission platforms for concurrent operations. It was commissioned on 28 October 2021. It functions as a command platform for search and rescue, anti-maritime crime, and marine environment protection duties.

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The Defence Research and Development Organisation (DRDO) successfully completed User Evaluation Trials of the Akash Next Generation (Akash-NG) missile system. Akash-NG is a modern Surface-to-Air Missile (SAM) defence system developed by DRDO and produced by Bharat Dynamics Limited (BDL). It is designed to protect vital areas from enemy air attacks. It is the advanced successor of the Akash missile. The new version is lighter and more advanced. It uses an indigenous Radio Frequency (RF) seeker, dual-pulse solid rocket motor, and fully indigenous radars with Command, Control, and Communication (C2) systems.

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President Droupadi Murmu undertook her maiden submarine sortie on December 28. She boarded the Kalvari-class submarine INS Vaghsheer at Karwar naval base. With this, she became the second President of India to go on a submarine sortie. The first Indian President to do so was Dr. A. P. J. Abdul Kalam. INS Vaghsheer is a Kalvari-class submarine of the Indian Navy. The event highlights civilian leadership’s close engagement with India’s naval forces. It reflects confidence in India’s indigenously built and advanced submarine capabilities

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Russia’s Ministry of Defence announced that the nuclear-capable Oreshnik missile system has officially entered active service. A brief induction ceremony was held in Belarus, where the missiles have been deployed. Oreshnik is an intermediate-range hypersonic ballistic missile developed by Russia. It is named after the Russian word for “hazel tree.” It has a range of 500 to 5,500 kilometres and can reach speeds up to Mach 10, or ten times the speed of sound. The missile is mobile and solid-fuel powered, allowing rapid deployment.

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Raksha Mantri Rajnath Singh commissioned ICGS Samudra Pratap, India’s first indigenously designed pollution control vessel, built by Goa Shipyard Limited (GSL), on 5th January 2026 in Goa. The ship is the largest in the Indian Coast Guard (ICG) fleet and has over 60% indigenous content, with plans to increase to 90%. It enhances the ICG’s capabilities in pollution control, firefighting, maritime safety, coastal patrol, and extended surveillance. It is equipped with advanced pollution detection systems, side-sweeping arms, skimmers, floating booms, and a pollution control lab, it can operate even in rough seas.

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Gulf Cooperation Council (GCC) forces have launched a major joint military exercise in Saudi Arabia called “Gulf Shield 2026”. The exercise aims to strengthen collective defence and improve regional military coordination among all GCC member states. It is designed to enhance combat readiness, joint operational integration, and efficiency in planning and execution in a unified operational environment. The drills include a wide range of procedures, tests, and field scenarios to assess force readiness and effectiveness of responses to potential threats.

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India’s indigenous Long Range Anti-Ship Missile (LRAShM) will be showcased at the Republic Day parade on 26 January. LRAShM is a hypersonic glide missile developed by the Defence Research and Development Organisation (DRDO). Hypersonic glide vehicles (HGVs) like LRAShM glide unpredictably after rocket launch, unlike traditional ballistic missiles. The missile combines extreme speed and maneuverability, making it hard to intercept with current air defenses.

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Swedish aerospace and defence company Saab showcased the RBS-15 missile’s ability to destroy parts of the Russian S-400 air defence system. RBS-15 stands for Robotsystem-15 and is a fire-and-forget anti-ship missile with land-attack capability. It is a surface-to-surface and air-to-surface missile developed by Saab Bofors Dynamics of Sweden. The missile is 4.35 metres long, weighs about 800 kilograms at launch, and flies at subsonic speed of Mach 0.9. It has a range of about 200 kilometres with a 200 kilogram high-explosive warhead. It flies low over the sea, performs evasive manoeuvres, and has low radar and infrared signatures.