India–US Foundational Defence Agreements

The India-US foundational defence agreements establish rules that make it easier for the two countries’ armed forces to cooperate. Their strategic purpose is to enable interoperability, secure information-sharing and reciprocal logistical support, while protecting sensitive technology and information. They deepen the defence partnership without creating a mutual-defence alliance.

What the four agreements enable

Each agreement addresses a different practical barrier to defence cooperation.

• The General Security of Military Information Agreement (GSOMIA), 2002, establishes safeguards for classified military information exchanged between the two governments.
• The Logistics Exchange Memorandum of Agreement (LEMOA), 2016, provides a framework for reciprocal logistical support, including fuel, supplies and services, with payment or reimbursement arrangements.
• The Communications Compatibility and Security Agreement (COMCASA), 2018, enables access to secure US communications equipment and facilitates encrypted communication between compatible military platforms.
• The Basic Exchange and Cooperation Agreement (BECA), 2020, facilitates the exchange of geospatial information and products that can support navigation, situational awareness and targeting accuracy.

Why they matter strategically

Together, these agreements provide the operational infrastructure for a closer defence relationship. Their importance lies less in declarations of friendship than in making cooperation technically possible and more effective.

• Interoperability allows the armed forces to communicate and coordinate more effectively during exercises and other mutually agreed activities.
• Reciprocal logistics makes agreed deployments and exercises easier to sustain by reducing the need to carry every supply from home.
• Secure communications and information-protection arrangements facilitate access to sensitive equipment and technology that require safeguards.
• Geospatial exchanges and secure connectivity can strengthen maritime domain awareness, helping India understand developments across its maritime neighbourhood.
• These capabilities support broader cooperation in the Indo-Pacific and improve the practical capacity for humanitarian assistance and disaster relief.

Scope and limits of the partnership

These are enabling agreements, not commitments to participate in each other’s wars. Their implementation depends on agreed procedures and sovereign decisions.

• LEMOA does not grant automatic access or basing rights; requests for logistical support require approval.
• The agreements do not themselves guarantee unrestricted technology transfer or access to all intelligence.
• India can deepen operational cooperation while retaining strategic autonomy, including independent decisions on military operations and relations with other countries.