Wow. Our experiment is off to a great start—let's see if we can finish it off sooner than expected.
Cpl. Douglas Antos, a Nokesville, Va., native and team leader with 2nd platoon, Golf Company, 2nd Battalion, 3rd Marine Regiment, clears his M50 gas mask amid a flurry of CS gas during a live-fire platoon attack at the Infantry Platoon Battle Course, Range 10 in the Pohakuloa Training Area, Hawaii, July 20, 2013 as part of Exercise Lava Viper. U.S. Marine Corps photo by Cpl. Matthew Callahan.