There are some who still argue that the United States
Matloff, Maurice, ed. World War II: The War Against Japan. www. Ibiblio.org/hyperwar/AMH/AMH/AMH-23.html
By early 1942 America and Australia had begun to launch retaliatory raids against some of Japan's newly acquired Pacific possessions, and later in the year General Doolittle led a small squadron of bombers on a mostly symbolic, but psychologically potent attack on Tokyo, Japan's capital, which was immortalized in his book Thirty Seconds Over Tokyo. The United States began to strengthen its bases from Hawaii to Alaska to India, and from there sent out forces to harass and interdict the Japanese perimeter at a variety of points throughout the theatre of war, which the enemy was too widely dispersed and thinly garrisoned to be able to protect completely.
The Japanese forces were well trained and equipped, with a fanatical discipline, and were willing to sacrifice their lives for the emperor. This was demonstrated repeatedly in countless kamakaze raids and last stands to the death as the war moved from island to island. But after a shaky start marked by numerous tactical blunders in the unfamiliar jungle warfare of Oceania, the Americans began to coordinate air, land, and water resources with greater effectiveness, especially when a new generation of technologically advanced aircraft carriers were deployed in 1943. Their strategy was to soften up the Japanese positions by air raids of land or sea-based planes, followed by artillery barrages (sometimes from neighboring islands), and finally culminated by amphibious assaults.