Commissioned

President Obama today announced his four nominations to serve on the National Commission on the Structure of the Air Force, which will evaluate and recommend changes to the way the active-duty Air Force, Air Force Reserve and Air National Guard interact and execute their missions.

The four individuals nominated by the president are:

-- F. Whitten Peters, better known as Whit, who served as Air Force Secretary from 1999 to 2001, first on an acting basis.

-- Janine Davidson, the former deputy assistant secretary of defense for plans at the Pentagon and now a professor at George Mason University's school of public policy. Davidson is also a senior fellow at the Center for a New American Security

-- Retired Marine Corps Lt. Gen. Dennis McCarthy, a principal at a military consulting firm and the former assistant secretary of defense for reserve affairs. McCarthy served in the Marines, first in the active-duty force and then in the reserve component, between 1967 and 2005, according to a biography listed by the Reserve Officers Association, where he served as executive director from 2005 to 2009

-- Margaret Harrell, the director of the RAND Corporation's Army health program. Between 2011 and 2012, Harrell worked as the senior fellow and director of the Center for a New American Security's military, veterans and society program.