On 8 December 1941 the Japanese 25th Army under the command of Lieutenant-General Tomoyuki Yamashita launched an amphibious assault on the Malay Peninsula (one hour before the attack on Pearl Harbor; the difference in date was because the two places lie on opposite sides of the international date line). That night the first Japanese invasion force arrived at Kota Bharu on Malaya's east coast. This was just a diversionary force, and the main landings took place the next day at Singora and Pattani on the south-eastern coast of Thailand, with troops rapidly deploying over the border into northern Malaya.