The visiting Chinese missile cruiser 113 (Qingdao) and U.S. missile cruiser 93 (Zhongyun) cooperated on a six-hour marine communication and mobile drill near Hawaii on September 10. This is the first time the U.S. and Chinese and navies have cooperated on such drills.
The drills were directed in turn by the U.S. and Chinese navy. They trialed several means of communication and organized their vessels into joint formations.
During the drills, the U.S. and Chinese navies each had two of their own observers on the other's ships to view and evaluate the giving of orders and drills.
The drills were held after the Chinese navy left Hawaii. The ships left Pearl Harbor for San Diego on the U.S. mainland at 10 a.m. on September 10.
(Source: People's Daily Online)