Navy Petty Officer 3rd Class Jeff L. Pursley (foreground), a Corpsman with 2nd Battalion, 2nd Marine Regiment's sniper platoon, and Cpl. Olen P. Thyssen, a 27 year-old scout sniper, took part in an operation that foiled a team of insurgents attempting to set an improvised explosive device on a road near Mahmudiyah, Aug. 23.