Here are photos taken from onboard the Chinese vessels involved in the recent naval dispute between the U.S. Navy acoustic research ship USNS Impeccable and five Chinese vessels in the South China Sea. They were posted on the Chinese Internet.

Where I have no intention to discuss the legality of the claims by either side, it is worth noting that the incident took place about 75 miles south of Sanya in Hainan Island, where a major Chinese naval base is located. In addition to surface combatants and conventional submarines, the base is said to be home to a Type 094 Jin class SSBN. You can see why the PLA Navy is feeling a little bit nervous about Impeccable's operation there.