Pacific Counterblow tells the story of the Battle for Guadalcanal (1942), focusing on the operations of the 11th Bombardment Group and the 67th Fighter Squadron. Months after the devastation of Pearl Harbor, U.S. forces had crushed the Japanese fleet at Midway and then moved to seize the initiative. AAF commanders in the Pacific sought to prevent the enemy from severing Australia's supply lines. So the B-17s of the 11th Bomb Group and the P-39s and P-400s of the 67th Fighter Squadron, flying from makeshift bases at Espiritu Santo and Henderson Field, began grueling attacks on Japanese shipping between Rabaul, New Britain and the Solomon Islands. After several months of bitter fighting, American forces gained control of Guadalcanal, positioning them to swing forward beyond Rabaul to New Guinea.