U.S. Marine Corps CH-53D Sea Stallion helicopters arrive outside Combat Outpost Kharman. U.S. Marine Corps CH-53D Sea Stallion helicopters arrive outside Combat Outpost Kharman, Afghanistan, to pick up Marines with Weapons Company, 2nd Battalion, 3rd Marine Regiment, Regimental Combat Team 1 and Afghan National Army soldiers to initiate Operation Watchtower on March 23, 2011. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 020159-I-DED27-093.jpg Photo Gallery