VDuring the Korean War Presidents Truman and Eisenhower threatened to use nuclear weapons as a means of driving the North Koreans to the negotiating table. To this end, nuclear weapons were shipped to Guam and the U.S. Army shipped an atomic cannon to Korea for usage in infantry support. The actual usage of the atomic cannon named "Atomic Annie" by the U.S. Army remains a mystery to this day. Author Arthur Sharp brings to the reader an examination of the preparedness U.S. forces took to use nuclear warfare weaponry in the Korean War and an examination of the usage of atomic cannons.