The 321st also engaged in psychological warfare missions, dropping propaganda leaflets behind enemy lines. Took part in the Allied operations against Axis forces in North Africa during March–May 1943, the reduction of Pantelleria and Lampedusain June, the invasion of Sicily in July, the landing at Salerno in September, the Allied advance toward Rome during January–June 1944, the invasion of Southern France in August 1944, and the Allied operations in northern Italy from September 1944 to April 1945.