Phillips ordered Force Z to sortie on 8 December against Japanese amphibious landings on Malaya in the Gulf of Thailand. "Encounter" and "Jupiter" were out of action with defects and were replaced by the First World War destroyers and . "Prince of Wales" and "Repulse" were sunk by Japanese aircraft on 10 December 1941, becoming the first capital ships moving at sea to be sunk solely by enemy aircraft.