Most notably, China is currently participating in the Rim of the Pacific Exercise, the world’s largest international maritime warfare exercise, for the first time this month. As previously noted, China sent the second largest delegation to the RIMPAC exercise this year. Its RIMPAC fleet includes the missile destroyer Haikou, the missile frigate Yueyang, the supply vessel Qiandaohu, the Peace Ark hospital ship, two helicopters and a dive unit, along with 1,100 personnel.