The Battle of Sarimbun Beach was the first stage of the Japanese assault on Singapore in February 1942 during World War II. Sarimbun Beach, in the northwestern corner of mainland Singapore, was the area in which Japanese troops, under the direction of Lieutenant-General Tomoyuki Yamashita, first attacked Allied forces (predominantly British) in Singapore. The commander of all Allied forces in Singapore, Lieutenant-General Arthur Percival, did not expect the Japanese to make their main attack on the island from the northwest and subsequently failed to reinforce the 22nd Australian Brigade, which took the brunt of the Japanese assault. The main Japanese objective to be attained following their landing at Sarimbun Beach was the capture of Tengah Airfield.