SEYMOUR JOHNSON AIR FORCE BASE -

The commander of the 4th Fighter Wing at Seymour Johnson Air Force Base is stepping down to take a prestigious job at the Pentagon.

Colonel Jeannie Leavitt is turning over her command to Colonel Mark Slocum at 9:04 a.m. Monday.

Colonel Leavitt is the Air Force's first female commander of a combat fighter wing, and has been wing commander since June 2012.

She will become chief military assistant to Secretary of Defense Chuck Hagel.

Colonel Leavitt took over base command in 2012.

She has logged more than 2,600 hours in the F-15E Strike Eagle, and more than 2,880 hours in the air overall.

Colonel Slocum has flown more than 2,600 hours, 929 of those in combat.

Before this command, Colonel Slocum headed up the 48th Operations Group assigned to Royal Air Force Lakenheath in England.

He has served at Seymour Johnson Air Force Base on two previous assignments.