The guided-missile frigate Enshi (Hull 627) attached to a frigate flotilla with the navy under the PLA Southern Theater Command steams in waters of the South China Sea during a maritime training exercise in late November, 2021.Photo:China Military

A sailor assigned to a frigate flotilla with the navy under the PLA Southern Theater Command fires heavy machine gun at a mock sea target aboard the guided-missile frigate Enshi (Hull 627) during a maritime training exercise in late November, 2021.Photo:China Military

A ship-borne helicopter attached to a frigate flotilla with the navy under the PLA Southern Theater Command practices lifting off and landing in coordination with the guided-missile frigate Enshi (Hull 627) during a maritime realistic training exercise in late November, 2021.Photo:China Military

Warships led by the guided-missile frigate Enshi (Hull 627) voyage in astern formation at a constant speed during a maritime realistic training exercise organized by a frigate flotilla with the navy under the PLA Southern Theater Command in late November, 2021.Photo:China Military

The guided-missile frigate Enshi (Hull 627) attached to a frigate flotilla with the navy under the PLA Southern Theater Command sails through the winds and waves in waters of the South China Sea during a maritime realistic training exercise in late November, 2021.Photo:China Military