Training for commissioned officers occurs through NROTC, the Navy Reserve Officers Training Corps; OCS, Officer Candidate School, including the Platoon Leaders Class (PLC), or the United States Naval Academy. After that, all officers spend their first six months, regardless of accession route or further training requirements, at The Basic School at Marine Corps Base Quantico, Virginia. The Basic School, solely for freshly commissioned second lieutenants learning the art of infantry and combined arms warfare, is an example of the unique approach the Corps takes to fostering the credo that “Every Marine is a rifleman first.”
Enlisted Marines attend boot camp, at either Marine Corps Recruit Depot San Diego or Marine Corps Recruit Depot Parris Island, just outside Beaufort, South Carolina. Women must attend Parris Island, but men train at either depot. The Mississippi River serves as the dividing line which delineates who will be trained where (with some minor exceptions), based on the what recruiting district the enlistee was recruited from.
Enlisted Marines then attend School of Infantry training at Camp Lejeune or Camp Pendleton, generally based upon where the Marine attended boot camp. Infantry Marines begin their Military Occupational Specialty (MOS) training immediately with the Infantry Training Battalion (ITB), while all other Marines train with the Marine Combat Training (MCT) Battalion before continuing on to their MOS schools.
In 1997, the school at Camp Lejeune expanded the MCT program to integrate female Marines. This basic infantry training for all Marines is one element of the philosophy that “Every Marine is a Rifleman.”