US, Sri Lanka launch joint naval exercise; India exercises with SE neighbours (NEIGHBOURHOOD WATCH)
The United States and Sri Lanka are reported to have conducted a joint naval exercise while regional military activity involving India and nearby countries was also described for deterrence and security coordination.

- Joint naval exercises are planned drills where navies practice working together during possible contingencies.
- Deterrence signalling means visible military activity meant to communicate capability and readiness to other actors.
- Security coordination means multiple countries align surveillance, patrols, and operational plans to reduce gaps in maritime response.
What happened
The United States and Sri Lanka are described as conducting a joint naval exercise. The same news account also describes associated regional military activity involving India and nearby countries, and frames the broader picture as cooperation and deterrence/security coordination.
Background and earlier position
UPSC can frame this episode as a case study on how joint naval drills can build interoperability (working procedures and coordination) while also functioning as visible deterrence-related signalling. India’s involvement through neighbouring and regional activity supports IR and security answers on balancing partnerships across the Indian Ocean.

