India has commenced Exercise Trishul, a significant tri-service military drill running from October 30 to November 10, 2025, along its western border, particularly focusing on the strategically important Sir Creek area. This large-scale exercise mobilizes approximately 25,000 Army personnel and integrates the Indian Army, Navy, and Air Force, showcasing a formidable array of military assets, including Rafale and Sukhoi Su-30 fighter jets, T-90 battle tanks, BrahMos missile units, and indigenous attack helicopters. Trishul serves as a demonstration of India’s military readiness and operational flexibility, particularly in the context of recent geopolitical tensions with Pakistan following Operation Sindoor, which was executed in May 2025 in response to a terror attack. The exercise is designed to test integrated joint operations across land, air, and sea while also sending a clear deterrent message to Pakistan regarding any territorial claims in the disputed Sir Creek region. The broader significance of Exercise Trishul lies in its embodiment of India’s evolving military doctrine, pivoting from reactive defense towards a proactive, multi-domain deterrence strategy, thereby enhancing the operational integration of its armed forces and establishing a more assertive posture in the region amidst ongoing security challenges.