finally considered ready for combat duty by April 1943. It shipped out of Tuskegee on 2 April, bound for North Africa, where it would join the 33rd Fighter Group and its commander, Colonel William W. Momyer. Given little guidance from battle-experienced pilots, the 99th's first combat mission was to attack the small strategic volcanic island of Pantelleria, code name Operation Corkscrew, in the Mediterranean Sea to clear the sea lanes for the Allied invasion of Sicily in July 1943. The air assault on the island began 30 May 1943. The 99th flew its first combat mission on 2 June. The surrender of the garrison of 11,121 Italians and 78 Germans due to air attack was the first of its kind. The 99th then moved on to Sicily and received a Distinguished Unit Citation (DUC) for its performance in combat. By the end of February 1944, the all-black 332nd Fighter Group had been sent overseas with three fighter squadrons: The 100th, 301st and 302nd. Under the command of Colonel Davis, the squadrons were moved to mainland Italy, where the 99th Fighter Squadron, assigned to the group on 1 May 1944, joined them on 6 June at Ramitelli Airfield, nine kilometers south-southeast of the small city of Campomarino, on the Adriatic coast. From Ramitelli, the 332nd Fighter Group escorted Fifteenth Air Force heavy strategic bombing raids into Czechoslovakia, Austria, Hungary, Poland, and Germany. Flying escort for heavy bombers, the 332nd earned an impressive combat record. The Allies called these airmen "Red Tails" or "Red-Tail Angels," because of the distinctive crimson unit identification marking predominantly applied on the tail section of the unit's aircraft. A B-25 bomb group, the 477th Bombardment Group, was forming in the U.S. but was not able to complete its training in time to see action. The 99th Fighter Squadron after its return to the United States became part of the 477th, redesignated the 477th Composite Group. Active air units The only black air units that saw combat during the war were the 99th Pursuit Squadron and the 332nd Fighter Group. The dive-bombing and strafing missions under Lieutenant Colonel Benjamin O. Davis Jr. were considered to be highly successful. In May 1942, the 99th Pursuit Squadron was renamed the 99th Fighter Squadron. It earned three Distinguished Unit Citations (DUC) during World War II. The DUCs were for operations over Sicily from 30 May – 11 June 1943, Monastery Hill