U.S. Secretary of State John Kerry and Philippines' President Benigno Aquino shake hands at a dinner in ManilaThrough Lesley Wroughton and Manuel Mogato MANILA (Reuters) – Secretary of State John Kerry on Tuesday played down stress with China over the East China Sea, pronouncing U.S. efforts to fortify maritime security in South East Asia were part of a standard course of to help allies shield themselves better. Kerry said maritime disputes between countries will have to be resolved peacefully through arbitration and america would talk out when a rustic, corresponding to China, took unilateral action that raised the possibility of battle. America has mentioned it does no longer recognize an air safeguard zone imposed through Beijing amid friction with Japan over disputed islands in the East China Sea. China can be locked in territorial rows with South East Asian nations over swathes of the South China Sea.