Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]

Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]

Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]

Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]

Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]

Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]

Photo taken on Feb. 24, 2021 shows naval forces of China and Singapore conducting a joint drill in waters near Singapore. Joint operations of fleet rendezvous, communication, formation movement and joint salvage were conducted as part of the drill on Wednesday. [Photo/Xinhua]