U.S. Marine Corps Lance Cpl. Helisco Guerrero, a rifleman

U.S. Marine Corps Lance Cpl. Helisco Guerrero, a rifleman with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, posts security during Exercise Southern Katipo 17 (SK17) at St. Arnaud, New Zealand, Oct. 28, 2017. Exercise SK17 is a combined joint and interagency field training exercise focused on developing, exercising and evaluating the NZDF’s ability to project forces anywhere in the South West Pacific to either operate independently or with coalition partners. (U.S. Marine Corps photo by Sgt. Allison M. DeVries)