To the surprise of the Japanese, the First Operational Phase went according to plan with extremely light losses, no ship larger than a destroyer was sunk. The invasion of Malaya and the Philippines began in December 1941. Japanese Land based naval bombers achieved notable success on December 10, when operating from bases in Indochina, they sank the British capital ships "Prince of Wales" and "Repulse". The island of Guam was seized on December 8 after token American resistance. The British Gilbert Islands were seized on December 9 and 10. The only temporary setback for the Japanese was the failure of the first attempt to seize Wake Island on December 11. In response, a carrier division from the Pearl Harbor attack force was diverted to Wake island for the a second attempt on December 22, which was successful this time around. The British fortress of Singapore also surrendered on February 15.