Second Strike Capability Current Affairs - 2019
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India’s first indigenous nuclear submarine INS Arihant has successfully completed its first deterrence patrol. The development signifies that underwater warship has completed its maiden long-range mission with live nuclear-tipped missiles.
During deterrence patrol, a nuclear submarine carries nuclear missiles on board, where command and control protocols for its operations are fully tested by its crew. The term deterrence patrol is meant to deter an adversary from launching a first nuclear-strike since SSBN (Ship Submersible Ballistic Nuclear) can launch retaliatory strike within minutes. With this, India completed its survivable nuclear triad by adding maritime strike capability to land and air-based delivery platforms for nuclear weapons. It makes India sixth country — after US, Russia, UK, France and China — to have fully operational nuclear triad.
INS Arihant is India’s first indigenously-designed, developed and manufactured nuclear-powered ballistic missile submarine, and three more such submarines are reportedly under various stages of construction. It was designed in 1990s and its development project was officially acknowledged in 1998. Its design is based on the Russian Akula-1 class submarine.
It was launched in 2009 and its nuclear reactor went critical in 2013 and it was commissioned in 2016. It is strategic asset developed for over two decades with Russia’s help under Advanced Technology Vessel (ATV) programme, which comes directly under Nuclear Command Authority headed by the Prime Minister.
INS Arihant is 6,000-tonne submarine with length of 110 metres and breadth of 11 metres. It is powered by 83 MW pressurised light water nuclear reactor with enriched uranium fuel. It can carry 12 Sagarika K 15 submarine launched ballistic missiles (SLBMs) having range of over 700 km.
As it powered by nuclear reactor it can function submerged for months without having to surface. This feature allows it to travel further and with greater stealth capability. It assures second strike capability to India i.e. capability to strike back after being hit by nuclear weapons first. In case of India, second strike capability is important as it had committed to ‘No-First-Use’ policy as part of its nuclear doctrine.
Nuclear triad capability of India
India is sixth Nation in the world (after US, Russia, France, China and UK) to possess Nuclear Triad. It means that India is capable of delivering nuclear weapons by aircraft, land based ballistic missiles and submarine launched missiles. India Army has strong arsenal of land based ICBM (intercontinental ballistic missile). It includes Agni series, Prithvi series, Prahar Missile, Shaurya Missile, supersonic Brahmos and subsonic Nirbhay missiles. Indian Airforce (IAF) operates Jaguars aircrafts which are designed for deep penetration strike and can carry nuclear bomb. Besides, IAF also has SU 30 MKI and Rafale aircrafts which can also be used to deliver nuclear weapons. Indian Navy now has its own nuclear powered ballistic missile submarine INS Arihant capable of delivering nuclear weapons.
Pakistan has successfully test-fired its indigenously designed and built nuclear-capable, submarine-launched cruise missile (SLCM) Babur III. The missile was fired from underwater dynamic platform and successfully engaged its target with precise accuracy, meeting all the flight parameters.
Babur-III is the naval variant of the land-based Babur-II. The missile is capable of delivering various types of payloads including nuclear. It incorporates advanced technologies, including underwater controlled propulsion and sophisticated guidance and navigation features. The missile has strike range of 450 km.
This is only the second time that Pakistan has announced test of SLCM Babur-III missile, with first test being conducted in January 2017. Duringfirst test, Babur-III was launched from unidentified underwater mobile platform.
Babur-III missile provides Pakistan’s military credible second strike capability. Pakistan has been working hard with China’s help on developing this capability to carry out retaliatory nuclear strike even after enemy’s nuclear attack destroys or neutralises its land-based nuclear arsenal. India already has it.