Lt. Gen. Leonard J. Kosinski is Director for Logistics, the Joint Staff, the Pentagon, Arlington, Virginia. As the Director for Logistics, he integrates logistics planning and execution in support of global operations and assists the Chairman of the Joint Chiefs of Staff in fulfilling his responsibilities as the principal military advisor to the President and Secretary of Defense.

Lt. Gen. Kosinski received his commission from the U.S. Air Force Academy in 1993 as a distinguished graduate with a Bachelor of Science degree in Operations Research. He has served in operational assignments flying the KC-135 Stratotanker, C-5 Galaxy, and C-17 Globemaster III. He is a distinguished graduate of the Defense Language Institute and was an Olmsted Scholar in Tokyo, Japan. Lt. Gen. Kosinski has also served in major operations including operations Southern Watch, Allied Force, Enduring Freedom, Iraqi Freedom and United Relief. Prior to his current position, the general was Deputy Commander, Fifth Air Force, and Director, Joint Air Component Coordination Element-Japan, Yokota Air Base, Japan.