Deputy Commander of the Chinese Navy Xu Hongmeng said the mission is an important part of efforts to build a new model of relations between China and the United States and their militaries.
It was noteworthy that the departure of the ships occurred just one day after the first anniversary of the end of the June summit attended by Chinese President Xi Jinping and his US counterpart Barack Obama last year.
Military-to-military contact, an area highlighted by the two national leaders in their summit, had long been regarded as the weakest link in the China-US relationship. However, since last year, the two militaries have held frequent high-level exchanges, including the exchange visits by defense chiefs.
The two navies have also held joint activities over the past year, which included a rare search-and-rescue exercise in Hawaii and a second joint anti-piracy drill in the Gulf of Aden.