General Walter C. Sweeney, Jr., Commander of Tactical Air Command, proposed an operational plan which called first for an air attack on the surface-to-air missile (SAM) sites in the vicinity of known medium range (MRBM) and intermediate range ballistic missile (IRBM) launchers by eight fighter-bombers per SAM site. Concurrently, each of the Cuban MiG airfields thought to be protecting MRBM/IRBM sites were to be struck by at least twelve fighters. Following the air-strikes on SAM sites and MiG fighter airfields, each MRBM and IRBM launch site was to be attacked by at least twelve aircraft. General Sweeney's plan was accepted and, additionally, Cuban Ilyushin Il-28 "Beagle" bombers bases were added to the target list.