Attacks by B-29 Superfortresses scheduled against Choshin No. 1 and 2 for the night of June 24–25, on the second anniversary of the start of the war, were cancelled after the targets were struck by F-51s during the day, but 25 bombers already prepared for the mission were re-targeted to radar-directed close support sorties along the front lines. After a pause on June 25, Choshin and Fusen were re-attacked by smaller numbers of Air Force fighters on June 26–27 to complete the hydroelectric attacks. Total bombing sorties during the four-day effort were 730 by land-based fighter-bombers and 546 by carrier aircraft. F-86 Sabres flew an additional 238 counter-air sorties to protect the force from MiGs. UN losses were five aircraft: two Navy Corsairs crashed at sea and three Air Force jets written off at their home bases. All of the pilots were rescued.