Small Wars Journal

Sean M. Castilla


Major Sean M. Castilla is an Armor Officer currently serving in Headquarters, Department of the Army staff as part of the Joint Chiefs of Staff/Office of the Secretary of Defense Internship.  Previous assignments include the 1st Cavalry Division, Special Operations Command Africa, and the 101st Airborne Division.  He holds a M.P.M in Policy Management from Georgetown University, an M.A. in International Relations from St. Mary’s University, San Antonio, and a B.A. Psychology from the University of Texas, Austin.

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