In this Aug. 25, 2011, file photo U.S. Marine Lance Cpl. Lane Edward Morrow,of Susanville, Calif., of the 3rd Platoon, Kilo Company, 3/4 Marines, guards a vehicle checkpoint in early morning in Helmand province, southern Afghanistan. "We need to get back to our bread and butter" Marine Corps commandant, Gen. James F. Amos, told Marines Nov. 23 at Camp Lawton, a U.S. special operations base in Afghanistan's Herat province. That begins, he said, with moves such as returning to a pattern of continuous rotations of Marines to the Japanese island of Okinawa, home of the 3rd Marine Division formed in the early days of World War II. (AP Photo/Brennan Linsley, File)

Photo by: Brennan Linsley

In this Aug. 25, 2011, file photo U.S. Marine Lance Cpl. Lane Edward Morrow,of Susanville, Calif., of the 3rd Platoon, Kilo Company, 3/4 Marines, guards a vehicle checkpoint in early morning in Helmand province, southern Afghanistan. "We need to get back to our bread and butter" Marine Corps commandant, Gen. James F. Amos, told Marines Nov. 23 at Camp Lawton, a U.S. special operations base in Afghanistan's Herat province. That begins, he said, with moves such as returning to a pattern of continuous rotations of Marines to the Japanese island of Okinawa, home of the 3rd Marine Division formed in the early days of World War II. (AP Photo/Brennan Linsley, File)