Leading Marines

Officer Service Options

Active or Reserve, Officer candidates must complete Officer Candidates School through various paths as well as six intense months at The Basic School. This is where one is instilled with the confidence to stand in front of—and in charge of—elite warriors.

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Leading Marines

Many Roles
One Mission

Every role critical to success

All Marines have a specific role for which they are optimally trained in support of the overall mission.  And while each role comes with different responsibilities, the end results are accomplishing the mission.

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Many Roles One Mission

Combat Element

Air Power

Being the first to fight starts before boots hit the ground, and Marines bring airpower as close as possible to each battle. From the Marine Air-Ground Task Force (MAGTF) to the Close Air Support (CAS), the aviation combat element is ready at a moment's notice.

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Aviation Combat Element

Be Well Informed

Meeting an Officer Selection Officer

Speaking with an Officer Selection Officer (OSO) will provide potential candidates more information about the challenging path and commitment that lies ahead in Officer Candidates School.

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Be Well Informed

239 Years of Tradition

Happy Birthday Marines

Marines have led the way in every conceivable action, across oceans and on every continent, winning America's battles on land, air and sea. Today we celebrate that proud legacy.

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239 Years of Tradition


Ground Schools

Ground Military Occupational Specialty schools cover a wide variety of roles, including Infantry Officers, Combat Engineers and Intelligence Officers.

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Flight Schools

Becoming a Marine Pilot is extremely challenging, competitive and rewarding.

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Naval Justice School

Throughout their careers, Judge Advocates can attend professional courses conducted by law schools and institutes throughout the country in various subjects.

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