The Battle of Kuala Lumpur was a battle between Japanese invasion forces and the British forces in Kuala Lumpur, in the then capital of the Federated Malay States, a British protectorate. Starting in late December Japanese began bombing the city;ground forces reached the city by 11 January 1942. The battle was part of Empire of Japan's expansive attack across the Pacific in December 1941, invading and attacking all over the Pacific, from Pearl Harbor, striking islands across the Pacific, Philippines, Malaya, Borneo, Burma, and Thailand. The invasion of Malaya leading up this battle had started after midnight on December 8 with the invasion of Kota Bharu.