Which event took place first, Operation Undertone or the Battle of Leyte?
Battle of Leyte The Battle of Leyte in the Pacific campaign of World War II was the amphibious invasion of the Gulf of Leyte in the Philippines by American forces and Filipino guerrillas under the command of General Douglas MacArthur, who fought against the Imperial Japanese Army in the Philippines led by General Tomoyuki Yamashita from 17 October - 26 December 1944. The operation code named "King Two" launched the Philippines campaign of 1944–45 for the recapture and liberation of the entire Philippine Archipelago and to end almost three years of Japanese occupation.
Operation Capital During World War II, Operation Capital, Operation "Y", was a broad British offensive launched from Assam, India across the Chindwin River into northeast Burma near Mandalay, launched on 19 November 1944. The objectives were to clear Japanese forces from northern Burma, reopen the Burma Road supply route to China and tie down Japanese forces to prevent their transfer to the Pacific theatre. The British Fourteenth Army struck the Japanese Fifteenth Army near Imphal and Kohima. The Japanese were forced to pull back to a line from Indaw to Mandalay, vacating most of Burma.