Constituted as 409th Bombardment Group (Light) on 1 Jun 1943 and activated the same day. Used A-20's in preparing for duty overseas. Moved to England, Feb-Mar 1944, and assigned to Ninth AF. Bombed coastal defenses, V-weapon sites, airdromes, and other targets in France, Apr-Jun 1944, in preparation for the invasion of Normandy. Supported ground forces during the Normandy campaign by hitting gun batteries, rail lines, bridges, communications, and other objectives. During Jul 1944, aided the Allied offensive at Caen and the breakthrough at St Lo with attacks on enemy troops, flak positions, fortified villages, and supply dumps. Supported Third Army's advance toward Germany, Aug-Nov 1944, operating from bases in France beginning in Sep. Converted to A-26 aircraft in Dec and participated in the Battle of the Bulge (Dec 1944-Jan 1945) by attacking lines of communication and supply. Continued to operate against targets in Germany until May 1945. Flew last mission on 3 May, attacking an ammunition dump in Czechoslovakia. Returned to the US, Jun-Aug 1945. Inactivated on 7 Nov 1945.
Squadrons. 640th: 1943-1945. 641st: 1943-1945. 642d: 1943-1945. 643d: 1943-1945.
Stations. Will Rogers Field, Okla, 1 Jun 1943; Woodward AAFld, Okla, Oct 1943; DeRidder AAB, La, c. 10 Dec 1943-10 Feb 1944; Little Walden, England, 7 Mar 1944; Bretigny, France, Sep 1944; Laon/Couvron, France, Feb-Jun 1945; Seymour Johnson Field, NC, Aug 1945; Westover Field, Mass, c. 6 Oct-7 Nov 1945.
Commanders. Col Preston P Pender, Jun 1943; Col Thomas R Ford, 4 Jul 1944-1945.
Campaigns. Air Offensive, Europe; Normandy; Northern France; Rhineland; Ardennes-Alsace; Central Europe.
Data from Air Force Combat Units of World War II By Maurer, Maurer, Published 1986