Original: During World War II, when the British lost Bukit Timah to the Japanese on 11 February 1942, they knew they had little chance of continuing the defense of the island as most of their food and supplies were stored there.
Simplified: During World War II, the British Army lost Bukit Timah to the Japanese on February 11th, they knew they had little chance of winning the war as most of their food and supplies were stored there.