USS Blue Ridge, the command ship of the U.S. Seventh Fleet which anchored in the sea area of the Tsing Ma Bridge in Hong Kong, invites media on board for visit on March 23, 2015. After a six-month maintenance period, the “Blue Ridge” arrived in Hong Kong on March 20. USS Blue Ridge (LCC-19) started service in 1970, and is one of the strongest US Navy command ships. It can cover a battle area up to 124 million square kilometers, 10 times the area of the United States. (CNS/Zhang YU)