Korean War PSYOP - A black and white photo of a man in a warehouse

Early in the Korean War the military did not have a dedicated artillery leaflet shell. The 105 mm howitzer smoke shell and the British “25 pounder” smoke shell were most suitable to convert to leaflet shells. With the smoke canister removed each shell could hold about 400 4 x 5-inch leaflets. Artillery can disseminate leaflets with great accuracy and is unaffected by weather conditions. They are best used immediately after an artillery bombardment, preferably at dawn or dusk when the enemy can pick up the leaflets without being seen. During the Korean War artillery was the most accurate means of delivery. Between June 1950 and July 1953 the Eighth U.S. Army delivered over 100 million leaflets by artillery, with over 15,000 shells a month being fired at the enemy during peak periods.