The amphibious dock landing ship Changbaishan (Hull 9890) attached to a landing ship flotilla with the navy under the PLA Southern Theater Command fires its main gun at a mock sea target in waters of the South China Sea during a maritime training exercise on November 18, 2020. The exercise lasted four days, focusing on 10 subjects including comprehensive defense, Landing Craft Air Cushion’s (LCAC) transfer, visit, board, search and seizure (VBSS) operation, and live-fire operations. (eng.chinamil.com.cn/Photo by Ze Tianyu)