U.S. Marine Corps Cpl. Timothy Antolini, left, an anti-tank missileman with Weapons Company, 1st Battalion, 7th Marine Regiment, and Lance Cpl. Joseph Tyler, center, an anti-tank missileman, provide security as a CH-53E Super Stallion helicopter lands during a mission in Helmand province, Afghanistan, May 2, 2014.
(DoD photo by Cpl. Joseph Scanlan, U.S. Marine Corps/Released). Original public domain image from Flickr