13.14 km Zojila Tunnel Breakthrough at 11,578 ft, Cost ₹6,800 Cr Under NHIDCL for All-weather Ladakh Connectivity

AM/NS India Supplies 100% Steel for INS Malvan, 2nd Mahe Class ASW Shallow Watercraft Commissioned

INS Malvan, the Indian Navy's latest indigenously-built Anti-Submarine Warfare Shallow Watercraft (ASW-SWC), has been commissioned using specialised steel from AM/NS India's Hazira plant in Surat. This highlights India's growing defence indigenisation (80%+ content) and the strategic role of Gujarat's industrial ecosystem in national security.

₹472 Cr T-Series Tank Overhaul Facility in Jabalpur to Boost Army’s T-72 & T-90 Fleet

India is building a ₹472 crore T-Series tank overhaul facility at Jabalpur to extend the life of its T-72 and T-90 main battle tanks. This directly supports combat readiness, reduces dependence on Russian spares amid the Ukraine conflict, and fosters indigenous defence manufacturing under Aatmanirbhar Bharat.

INS Nipun Commissioned: Indian Navy's 2nd Nistar-class Diving Support Vessel Enhances Submarine Rescue Capability

INS Nipun, the Indian Navy's second Nistar-class Diving Support Vessel, was commissioned at Mumbai. Built indigenously by HSL, it enhances India's submarine rescue, deep-sea diving, and salvage capabilities, marking a step towards Aatmanirbhar Bharat in defence.

U.S. Establishes Two New Military Bases in Greenland Under 2026 Security Deal to Counter Russia, China

The U.S., Denmark, and Greenland signed a landmark security deal on September 22, 2026, at the UN General Assembly. The agreement allows the U.S. to establish two new military bases in Greenland (Narsarsuaq and Mestersvig), expand its Arctic presence, and counter growing Russian and Chinese influence in the region. While respecting Danish sovereignty and Greenland's self-determination, the deal grants the U.S. indefinite access to military facilities and influence over Greenland's rare earth resources.

US-Denmark-Greenland Security Pact Allows Permanent US Basing, Bans Non-NATO Presence in Arctic

The US-Denmark-Greenland security pact, announced on September 18, gives the US permanent basing and overflight rights in Greenland and bars non-NATO nations from building bases or making sensitive investments without US approval. It resolves the NATO strain caused by Trump's annexation demand while preserving Danish/Greenland sovereignty, and remains valid even if Greenland becomes independent. This reshapes Arctic geopolitics amid Russia's military expansion and China's growing footprint.

Subsea Cables Carry 99% Internet Traffic: Vulnerabilities, Ownership Concentration & India's Resilience Plan

Subsea cables carry over 99% of global internet traffic, yet their supply chain is concentrated among a few private players and hyperscalers, making them vulnerable to sabotage, cyberattacks, and economic disruption. Recent NATO, Finland, and China incidents highlight intensifying threats, while India is building repair capacity via a DoT single-window clearance portal. This is a high-yield topic for GS3 infrastructure, science-tech, and security questions.

Trump Threatens NATO Exit, Signs Greenland Security Pact with Denmark

President Trump's threat to leave NATO contradicts his new security pact with Denmark to expand US military bases in Greenland, a territory whose defence is tied to NATO. This creates a strategic paradox that examiners will test for its implications on alliance solidarity, Arctic geopolitics, and US commitment to collective security.

KAVACH Version 4.0 Commissioned on SCR: India’s Indigenous Automatic Train Protection System Explained

KAVACH, India's indigenous Automatic Train Protection (ATP) system, has been upgraded to Version 4.0 and commissioned on the South Central Railway's Malkajgiri–Kamareddi section over 108 route km. This is crucial for UPSC as it touches infrastructure, safety technology, and comparisons with global systems like ETCS, ATC, and PTC. The article also links to Sam Pitroda committee recommendations on railway modernisation.