China hits at US 'provocations', says doesn't fear 'trouble'

'Countr­ies outsid­e should play a constr­uctive role in this regard, not the other way around' admira­l Sun

• US warns Beijing of 'self-isolation' in South China Sea

  The Philippines, Brunei, Malaysia and Vietnam have competing claims in the area

• US vows 'actions' if China builds new South China Sea structures

  Carter declined to elaborate when later pressed on what "actions" Washington might take

• At Air Force Academy, Obama warns against isolationism

  As cadets celebrated after taking their oath during the graduation ceremony, a cadet from Pakistan held up his flag