High-Explosive Effort Marines carry 155 mm high-explosive projectiles during a mission to support the 10th Marine's Regimental Firing Exercise 1-17 on Camp Lejeune, N.C., Feb. 16, 2017. The exercise aimed to increase mission capabilities and enhance operational readiness. Marine Corps photo by Lance Cpl. Justin X. Toledo SHARE: Download: Full Size (2.53 MB) Credit: Lance Cpl. Justin Toledo VIRIN: 170216-M-ZY733-1018A.JPG Photo Gallery