A U.S. Marine, serving with India Company, 3rd Battalion, 6th Marine Regiment, demonstrates how to properly fire a mortar 60mm mortar system at Colonel Ernesto Ravina Air Base, Philippines, April 4, 2019 during Exercise Balikatan 2019. Balikatan, in its 35th iteration, is an annual U.S.-Philippine military training exercise focused on a variety of missions, including humanitarian assistance and disaster relief, counter-terrorism, and other combined military operations held from April 1 to April 12. Balikatan provides participating forces an opportunity to maintain a high level of readiness and responsiveness as well as enhance combined military-to-military relations and capabilities. (U.S. Army photo by Spc. Elizabeth Johnson)