"The Nimitz-class aircraft carrier USS Ronald Reagan (CVN 76), with the embarked Carrier Air Wing (CVW) 5, and the Arleigh Burke-class guided-missile destroyer USS McCampbell (DDG 85), the Ticonderoga-class guided-missile cruiser USS Shiloh (CG 67), and the Arleigh Burke-class guided missile destroyer USS Barry (DDG 52), arrived in Singapore for a routine port visit," the release stated.
China and several US allies in the region —Japan, Vietnam and the Philippines — have competing claims to the maritime borders and responsibility areas in the South China and East China seas.
In January 2013, the Philippines formally initiated arbitration proceedings against China's claim on the Spratly Islands, also known as the Nansha Islands. The Permanent Court of Arbitration ruled in 2016 that the islands were not an exclusive economic zone for China, but Beijing refuses to recognize the tribunal's ruling.