A US aircraft carrier has arrived in Vietnam for the first time since the end of the Vietnam War, reported Reuters. 

On Monday morning, the USS Carl Vinson arrived in the coast of the Vietnamese city of Danang, with two other US ships.

The arrival of the Vinson marks the biggest US military presence in Vietnam since 1975. But it also illustrates Hanoi’s complex and evolving relationship with Beijing over the disputed South China Sea.

Vietnamese envoys had been working for months to ease the concerns of their Chinese neighbor over the visit and the prospect for broader security cooperation between Hanoi and Washington, according to diplomats and others familiar with the talks.