The Johor–Singapore Causeway is a 1.056-kilometre (0.66 mi) causeway consisting of a combined railway and motorway bridge that links the city of Johor Bahru in Malaysia across the Straits of Johor to the district and town of Woodlands in Singapore. It was the only land connection between the two from 1928 until 1998, when the Tuas Second Link opened.

The Malayan campaign, referred to by Japanese sources as the Malay Operation , was a military campaign fought by Allied and Axis forces in Malaya, from 8 December 1941 – 15 February 1942 during the Second World War. It was dominated by land battles between British Commonwealth army units and the Imperial Japanese Army, with minor skirmishes at the beginning of the campaign between British Commonwealth and Royal Thai Police. The Japanese had air and naval supremacy from the opening days of the campaign. For the British, Indian, Australian, and Malayan forces defending the colony, the campaign was a total disaster.