The guided-missile frigate Liupanshui (Hull 514) attached to a frigate flotilla with the navy under the PLA Southern Theater Command conducts an astern replenishment-at-sea with a supply ship during a maritime training exercise from November 28 to December 1, 2018. (Photos: (eng.chinamil.com.cn)

The guided-missile frigate Baise (Hull 585) attached to a frigate flotilla with the navy under the PLA Southern Theater Command launches a target drone aircraft during the maritime training exercise from November 28 to December 1, 2018.

The guided-missile frigate Baise (Hull 585) attached to a frigate flotilla with the navy under the PLA Southern Theater Command fires its main gun at mock sea targets during the maritime training exercise from November 28 to December 1, 2018.

Two rigid-hull inflatable boats (RHIBs) steam in speed for a visit, board, search and seizure (VBSS) operation during a maritime training exercise from November 28 to December 1, 2018.

Sailors wearing gas masks operate a combat direction system console aboard the guided-missile frigate Baise (Hull 585) during a maritime training exercise from November 28 to December 1, 2018.