Sgt. Fredrick Dickinson, 24, from Carson, Calif., a

Sgt. Fredrick Dickinson, 24, from Carson, Calif., a Marine doing on-the-job training with Marine Corps Base Camp Pendleton EOD to prepare for the explosive ordnance disposal military occupational specialty school, draws a French M61 60mm mortar on a notepad as part of his basic ordnance reconnaissance aboard Camp Pendleton, Jan. 23, 2018. Marine Corps Base Camp Pendleton EOD is a reactionary bomb squad that responds to all unexploded ordnance and anti-terrorism force protection calls for the base. (U.S. Marine corps photo by Lance Cpl. Lukas Kalinauskas.)