Colonel Derrick Heyl, Commanding Officer of Headquarters Battalion, Marine Forces Reserve, addresses Marines at the 241st Marine Corps birthday celebration here, Nov. 9, 2016. Each year, the Marines celebrate the Corps’ birthday with a cake-cutting ceremony followed by a run. Since Nov. 10, 1775, the United States Marine Corps has earned the reputation as the world's most effective expeditionary fighting force – engaging in combat on battlefields across the globe. (U.S. Marine Corps photo by Sgt. Sara Graham)