Naval fleet
Coordinated patrols include: Indo–Thai CORPAT (28 editions), Indonesia–India CORPAT (33 editions), IMCOR with Myanmar (8 editions). The Indian Navy conducted a naval exercise with the People's Liberation Army Navy in 2003, and also sent ships to the South China Sea to participate in the fleet review. In 2005, TROPEX (Theatre-level Readiness Operational Exercises) was held during which Indian Navy experimented the doctrine of influencing a land and air battle to support the Indian Army and the Indian Air Force. TROPEX has been conducted annually every year with an exception to 2016. In 2007, Indian Navy conducted naval exercises with Japan Maritime Self-Defence Force and U.S Navy in the Pacific, and also signed an agreement with Japan in October 2008 for joint naval patrolling in the Asia-Pacific region. In 2007, India conducted naval exercises with Vietnam, Philippines, and New Zealand. In 2007, India and South Korea conducted an annual naval exercise, alongside India's participation in the South Korean International Fleet Review in 2008. The first Atlantic Ocean deployment of the Indian Navy happened in 2009. During this deployment, the Indian Naval fleet conducted exercises with the French, German, Russian and British navies. Once in two years navies from the Indian Ocean region meet at the Andaman and Nicobar Islands for the Exercise MILAN.