Maharashtra HSC Defence Studies key terms

A strategy of preventing an adversary from acting by convincing it that the costs and risks of action will outweigh any expected gains, usually through credible military capability and demonstrated resolve.

The condition in which a state protects its sovereignty, territorial integrity, citizens and core values from external and internal threats, using military, economic, diplomatic and informational means.

The aggregate of a state's military, economic, technological, demographic, diplomatic and soft-power assets, used to assess its relative strength and capacity to pursue national interests in the international system.

The ability to influence other states through attraction rather than coercion, arising from culture, political values and legitimate foreign policies that make others want to cooperate voluntarily.

A state's capacity to make and implement independent foreign and security policy choices, avoiding excessive dependence on any single ally or supplier while retaining freedom of manoeuvre.

A foreign policy posture of not formally joining rival military blocs while retaining independence of judgement; in the Indian context it now emphasises issue-based engagement rather than equidistance.

India's declared nuclear doctrine of maintaining the smallest arsenal and posture judged sufficient to deter nuclear coercion, backed by assured retaliation and a no-first-use commitment.

A declared policy that a state will not be the first to use nuclear weapons, reserving the right to retaliate massively; India adopted this posture in 2003 with caveats on non-nuclear attacks.

The assured ability to retaliate with nuclear weapons after absorbing a first strike, typically requiring survivable delivery systems such as submarines, hardened silos or mobile launchers.

A nuclear force structure comprising land-based missiles, air-delivered weapons and submarine-launched ballistic missiles, giving redundancy and survivability across delivery platforms.

India's apex body for nuclear decisions, comprising a Political Council chaired by the Prime Minister that alone authorises use, and an Executive Council that advises and executes.

The tri-service Indian command created in 2003 to administer and operate the country's nuclear arsenal, reporting for employment decisions through the Nuclear Command Authority.

A unified command structure in which forces of two or more services in a geographic or functional theatre operate under a single commander, intended to improve jointness and reduce duplication.

India's senior-most uniformed officer, created in 2019, who heads the Department of Military Affairs, advises the government on military matters and promotes tri-service integration.

A joint body under the Ministry of Defence that coordinates plans, doctrine and intelligence across the three services and supports higher defence decision-making.

The Indian body chaired by the Defence Minister that grants Acceptance of Necessity and approves capital acquisitions, setting the framework for procurement within the defence budget.

The formal Indian approval that a capital acquisition is required and that a particular procurement category and quantity may proceed, marking the start of the procurement cycle.

A procurement condition requiring a foreign supplier to reinvest a share of contract value in the buyer's domestic defence industry or to source components locally, building industrial capability.

A national manufacturing initiative whose defence component promotes domestic design and production of military equipment, raising self-reliance and reducing import dependence.

An Indian procurement approach that selects private Indian firms as strategic partners to build major platforms with foreign technology transfer, aiming to create domestic system integrators.

A designated region with shared infrastructure and incentives to cluster defence manufacturing, such as the Uttar Pradesh and Tamil Nadu corridors announced to attract investment and skills.

The allocation of public funds for military purposes, covering revenue expenditure such as pay and maintenance and capital expenditure for equipment and infrastructure, expressed in a financial year.

The portion of the defence budget spent on creating long-term assets, chiefly weapon platforms, aircraft, ships and infrastructure, as distinct from recurring revenue spending.

A government-owned Indian company producing defence equipment, such as HAL or BEL, which supplies the armed forces and is a key instrument of indigenous defence production.

The erstwhile Indian body managing state ordnance factories producing ammunition and army equipment; it was restructured into seven defence public sector companies in 2021.

India's military research agency, developing missiles, electronics, materials and platforms for the armed forces and serving as a major node in the national defence innovation system.

An Indian programme launched in 1983 to develop a family of missiles including Prithvi, Agni, Akash, Trishul and Nag, establishing indigenous missile design and production capability.

A fundamental change in warfare driven by new technology and doctrine, such as precision weapons and information networks, altering how forces organise, deploy and fight.

An approach that links sensors, decision-makers and shooters through shared information networks so that forces act faster and more coherently than opponents.

The combined use of regular military force with irregular tactics, cyber operations, information campaigns and economic pressure, blurring the line between peace and war.

Competition below the threshold of open armed conflict, using coercion, subversion, legal and economic pressure to gain advantage while staying short of triggering conventional military response.

Conflict waged primarily through information, perception and non-kinetic means against a society's cohesion and will, often by non-state actors and without clear fronts or declared hostilities.

The use of computer network attacks and defence to disrupt or exploit an adversary's systems, infrastructure and information, conducted in a domain without geographic boundaries.

Computer systems and networks whose disruption would seriously harm national security, economy or public safety, such as power grids, banking and telecom networks, requiring dedicated protection.

Measures taken to protect civilians and property from the effects of hostile action or disaster, including warning systems, shelters, rescue, first aid and public awareness.

India's apex statutory body, chaired by the Prime Minister, that lays down policies and guidelines for disaster management and coordinates response across ministries and states.

The 2005 Indian law that created a three-tier institutional framework for disaster management at national, state and district levels and defined prevention, mitigation and response duties.

A 2015-2030 global agreement on disaster risk reduction setting targets to lower mortality, affected persons and economic losses and to strengthen preparedness and recovery.

The process of building unity and shared identity among diverse regions, religions, languages and communities of a state while respecting pluralism and reducing sectional conflict.

The founding treaty of the United Nations that sets out purposes and principles including sovereign equality, peaceful settlement of disputes and restrictions on the use of force.

A system in which states agree that aggression against one member is treated as aggression against all, and commit to joint measures to restore peace.

The deployment of neutral multinational forces, typically under United Nations mandate, to monitor ceasefires and separate belligerents with the consent of the parties involved.

A 1968 treaty under which nuclear-weapon states undertake not to transfer weapons and non-nuclear states forgo acquiring them, with safeguards verified by the IAEA.

A 1996 treaty banning all nuclear explosive tests, verified by an international monitoring system; India has not signed it, having conducted tests in 1998.

An informal export-control arrangement among supplier states restricting transfers of missiles capable of delivering weapons of mass destruction and related technology.

The de facto boundary between Indian- and Chinese-controlled territory, without a mutually agreed alignment, where troop deployments and patrolling are governed by bilateral agreements.

The military control line dividing Indian and Pakistani administered territory in Jammu and Kashmir, established after the 1971 war and monitored by observers.

The coordinated effort to secure and administer a state's frontiers, combining military deployment, border-guarding forces, infrastructure, intelligence and cooperation with neighbouring states.

A uniformed force organised on military lines but distinct from the regular armed forces, used for border guarding, internal security and counter-insurgency tasks under civil authority.

One of India's national police organisations under the Ministry of Home Affairs, including the CRPF, BSF, CISF, ITBP and SSB, tasked with internal security and border duties.

A paramilitary force with a dual role of border guarding along the India-Myanmar frontier and counter-insurgency in the North-East, led by officers seconded from the Indian Army.

A decoration recognising exceptional courage in the face of the enemy, such as the Param Vir Chakra or Vir Chakra, reflecting the armed forces' traditions of valour and sacrifice.

The organisation of the army into regiments with distinct histories, traditions, uniforms and recruitment areas, fostering esprit de corps and unit cohesion across generations of soldiers.

The senior-most officer of the Indian Navy, responsible for its command, operational readiness and advice to the government on maritime military matters.

The supreme legal authority of a state within its territory and its independence from external control, which forms the core interest that defence policy exists to protect.

A concept shifting focus from state borders to the protection of individuals from threats such as conflict, hunger, disease and environmental harm across their daily lives.

The mobilisation of political identity around religious community, which can generate hostility between groups and is treated as a threat to national integration and internal security.

A volunteer or part-time firefighting organisation raised in wartime or emergencies to supplement regular fire services during bombing, disasters and civil defence operations.