Marines with Marine Wing Support Squadron (MWSS) 373, Marine Wing Support Group (MWSG) 37, 3rd Marine Aircraft Wing (MAW), pour concrete at the construction site at Catalina Island, Calif., Jan. 23. The Catalina Island Airport in the Sky project provides training that will make Marines and Sailors far more effective in fulfilling their mission across a wide range of operations. (U.S. Marine Corps photo by Lance Cpl. Juan Anaya)