Joint Knowledge Online

Welcome to JKO

We are the Department of Defense (DoD) unique and authoritative source for online joint training.

JKO provides continuous, career-long development of joint knowledge and joint readiness for individuals, staffs, Combatant Commands, Combat Support Agencies, and the Services.


From JKO and the Senior Enlisted JPME (SEJPME) Program, “The Noncommissioned Officer and Petty Officer: BACKBONE of the Armed Forces” (NDU Press, 2014) is now available as an audiobook download from the free JKO Mobile App. For more information

About Us

Joint Knowledge Online is the enterprise portal system providing convenient access to online joint training and information resources. JKO uses the latest advanced distributed learning technologies to provide training courses and resources that better prepare warfighters for joint exercises and operations.

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JKO Help Desk

24/7 with the exception of US Federal Holidays

DSN: 668-5654

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