The United States Marine Corps Officer Candidate School (OCS) is a school located in MCB Quantico, providing initial training and screening for potential officers of Marines. Unlike the other U.S. services, the majority of Marine Corps officers must complete OCS to earn a commission; the only exception are midshipmen in the Naval Academy. To enter OCS, one must apply to one of three programs: Platoon Leaders Class for college students not in their senior year, Officer Candidates Class for college seniors and graduates, or the Marine option of the NROTC program. United States Marine Corps seal The United States Marine Corps (USMC) is a branch of the U.S. military. ... Platoon Leaders Class (PLC) is the United States Marine Corps alternative method for the training and evaluation of its Marine Officer Candidates. ... The Naval Reserve Officer Training Corps commissions individiuals into either the United States Navy or United States Marine Corps. ...

OCS has a 10-week curriculum that teaches basic military skills and Marine Corps history, traditions, and customs & courtesies, but these are taught at the most basic level. The primary aim of OCS is not indoctrination, but screening and evaluation. Students are placed in a training environment to evaluate their leadership potential though 2-3 day command billets in the company and platoon, and squad and fire-team level field exercies. The follow-on school to OCS, The Basic School (TBS), is where all the skills and knowledge necessary to be an officer of Marines is imparted on future officers. The Basic School (TBS) is where all newly commissioned United States Marine Corps officers are sent to learn the art and science of being a Marine officer. ...

History

Prior to World War I, Marine Officers primarily came from the Naval Academy, or were commissioned from the enlisted ranks, but as the Marine Corps expanded it needed its own training pipeline for officers. OCS traces its roots to the "School of Application", established in 1891 in Washington, D.C. With the expansion of the Marine Corps for World War I, all instructional efforts were consolidated in MCB Quantico, where they remain today. Combatants Allies: • Serbia, • Russia, • France, • Romania, • Belgium, • British Empire and Dominions, • United States, • Italy, • ...and others Central Powers: • Germany, • Austria-Hungary, • Ottoman Empire, • Bulgaria Casualties Military dead: 5 million Civilian dead: 3 million Total: 8 million Full list Military dead: 3 million Civilian dead: 3 million Total: 6 million Full... ...