U.S. Marines with Charlie Company, Infantry Training Battalion, School of Infantry – West, train with the M67 Fragmentation Grenade at Range 202 on Marine Corps Base Camp Pendleton, California, May 26, 2020. The #Marines learned the characteristics and the tactical employment of the fragmentation #grenades during this training evolution. ITB trains, develops and certifies Marines as riflemen, as well as their primary #military occupational specialty within the infantry field, before sending them to join the Fleet Marine Force. (U.S.