Marines with 1st Battalion, 3rd Marine Regiment, aided by India Battery, 3rd Battalion, 11th Marine Regiment, used the 81mm Mortar and the 155mm Howitzer to destroy an enemy location given to them by training evaluators during Large Scale Exercise 15 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Aug. 14 – 15, 2015. LSE-15 is a combined U.S. Marine Corps, Canadian and British exercise conducted at the brigade level, designed to enable live, virtual and constructive training for participating forces. - Marines with 1st Battalion, 3rd Marine Regiment, aided by India Battery, 3rd Battalion, 11th Marine Regiment, used the 81mm Mortar and the 155mm Howitzer to destroy an enemy location given to them by training evaluators during Large Scale Exercise 15 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Aug. 14 – 15, 2015. LSE-15 is a combined U.S. Marine Corps, Canadian and British exercise conducted at the brigade level, designed to enable live, virtual and constructive training for participating forces.