U.S. Marine Corps CH-46 Sea Knights land at Marine Corps Air Ground Combat Center Twentynine Palms Calif., Jan. 29, 2014. The helicopters were used in training for Marines with 1st Battalion 2nd Marine Regiment, 2nd Marine Division, during Integrated Training Exercise 02-14 which prepared the Marine for future operations to Afghanistan in support of Operations Enduring Freedom.(U.S. Marine Corps photo by Lance Cpl. Hannah Q. Schuller, 2nd MARDIV Combat Camera/Released)