Singapore Strait A combined boarding at sea united the visit, board, search and seizure (VBSS) teams of USS Crommelin (FFG 37) and the Republic of Singapore navy (RSN) patrol craft RSS Sea Lion (P 77) during the Singapore phase of exercise Cooperation Afloat Readiness and Training (CARAT) June 6. A combined 10-ship USN/RSN CARAT task group, in addition to air assets, is operating together in the South China Sea during the first leg of the annual series of bilateral maritime training exercises between the United States and six Southeast Asia nations. “Training together helps us enhance maritime security in the Singapore Strait,” said Sea Lion’s boarding officer Capt. Lee, who only uses his family name.