Postal clerk Petty Officer 2nd Class Cornilius Burr takes photos of sharks as they swim overhead during a tour to Sentosa Island. Sailors assigned to the Nimitz-class aircraft carrier USS Ronald Reagan made a scheduled port visit to Singapore and enjoyed a variety of tours sponsored by Morale, Welfare and Recreation. The Ronald Reagan Carrier Strike Group is on a scheduled deployment in the 7th Fleet area of responsibility. Operating in the Western Pacific and Indian Ocean, the U.S. 7th Fleet is the largest of the forward-deployed U.S. fleets covering 52 million square miles, with approximately 50 ships, 120 aircraft and 20,000 Sailors and Marines assigned at any given time.