THE AMERICAN PSYOP ORGANIZATION DURING THE KOREAN WAR
During the Korean War the White House and the Army publicized the ..
Starting about the Vietnam War, mathematical calculations and formulae proved that the 3 x 6-inch leaflet was the most accurate for air-dropping on a specific target. During the Korean War, the three-color 5.25 x 8-inch leaflet was used most extensively and considered the standard. The daily production of this sized leaflet using paper rolls with two presses and two shifts (16 hours) was 2,400,000 leaflets. Using sheet fed paper the total dropped to 384,000 leaflets. One can see that a lot of production was lost in carrying sheets of paper to and from the presses.
The last military restrictions ended during the Korean War.
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 Army delivered over 100 million leaflets by artillery, with over 15,000 shells a month being fired at the enemy during peak periods.