Coordinated patrols include: Indo–Thai CORPAT (28 editions),[242] Indonesia–India CORPAT (33 editions),[243] IMCOR with Myanmar (8 editions).[244] The Indian Navy conducted a naval exercise with the People's Liberation Army Navy in 2003,[245] and also sent ships to the South China Sea to participate in the fleet review.[246] 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.[247] TROPEX has been conducted annually every year with an exception to 2016.[248] In 2007, Indian Navy conducted naval exercises with Japan Maritime Self-Defence Force and U.S Navy in the Pacific,[249] and also signed an agreement with Japan in October 2008 for joint naval patrolling in the Asia-Pacific region.[250] In 2007, India conducted naval exercises with Vietnam,[251] Philippines,[252] and New Zealand.[253] In 2007, India and South Korea conducted an annual naval exercise,[254] alongside India's participation in the South Korean International Fleet Review in 2008.[255] The first Atlantic Ocean deployment of the Indian Navy happened in 2009.