The growth of the Chinese presence in the Indian ocean triggered the largest sea exercise that the region has experienced more than two decades. The United States, Japan and India has deployed its frontline warships, submarines and aircraft as part of exercise Malabar in the Bay of Bengal. Held annually since 1992, the teachings grew in size and complexity to solve what the Navy describes as "a lot of common threats to Maritime security in the Indo-Asia Pacific". Exercises, which officially began on Monday, are designed to provide "symbolic reassurance that the United States is committed to working with India to continue to build the Asian security environment", - said the expert on foreign policy at Carnegie, India's Constantine Xavier. The week-long series of war games will involve a total of 16 ships, including the nuclear Nimitz, Indian INS Vikramanditya, rebuilt Russian aircraft carrier and the Japanese helicopter helicopter JS Izumo with emphasis on underwater warfare, as well as two submarines and more than 95 aircraft. The buildup of naval power in the region occurs at the moment of increasing tension between India and China. In recent years, China has steadily increased its naval presence in the Indian ocean that is part of a persistent strategy of "blue water", which aims to expand the operational ability of the country far from the Chinese coast. According to the analysis of publicly available data IndiaSpend, Navy people's liberation army (plan) is 283 large warship on the surface, four times more than those that are under the control of Indian Navy (66). Delhi has long been considering the ocean of India as part of its direct sphere of influence. The expansion of the marine fleet of China and, in particular, its submarine fleet, has forced Indian leaders to reassess the policy of coastal defense of the country. In the North, India and China are in constant border dispute in a mountainous area Dalam, on the unmarked border between China and Bhutan. Although it is not part of the territory of India, a plateau is of great strategic value for new Delhi and is vital to its geopolitical interests.