
The Straits Settlements were a group of British territories located in Southeast Asia. Originally established in 1826 as part of the territories controlled by the British East India Company, the Straits Settlements came under British Raj control in 1858 and then under direct British control as a Crown colony on 1 April 1867. In 1946, following the end of the Second World War and the Japanese occupation, the colony was dissolved as part of Britain's reorganisation of its Southeast Asian dependencies in the area.

Singapore in the Straits Settlements refers to a period in the history of Singapore from 1826 to 1942, during which Singapore was part of the Straits Settlements together with Penang and Malacca. Singapore was the capital and the seat of government of the Straits Settlement after it was moved from George Town in 1832.

The Straits dollar was the currency of the Straits Settlements from 1898 until 1939. At the same time, it was also used in the Federated Malay States, the Unfederated Malay States, Kingdom of Sarawak, Brunei, and British North Borneo.

The Japanese government-issued dollar was a form of currency issued for use within the Imperial Japan-occupied territories of Singapore, Malaya, North Borneo, Sarawak and Brunei between 1942 and 1945. The currency was also referred to informally as banana money, named as such because of the motifs of banana trees on 10 dollar banknotes. The Japanese dollar was in widespread use within the occupied territories where the previous currency became scarce. The currency were referred to as "dollars" and "cents" like its predecessors, the Straits dollar, Malayan dollar, Sarawak dollar and British North Borneo dollar.

The Japanese Invasion of Malaya began just after midnight on 8 December 1941 before the attack on Pearl Harbor. It was the first major battle of the Pacific War, and was fought between ground forces of the British Indian Army and the Empire of Japan.

Malacca was a British Crown colony from 1946 to 1957. It came under British sovereignty after the signing of the Anglo-Dutch Treaty of 1824, and had been part of the Straits Settlements until 1946.
The Malayan campaign 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 Armed Forces. The Japanese had air and naval supremacy from the opening days of the campaign. For the British, British Indian, Australian and Malayan forces defending the colony, the campaign was a total disaster.

Penang was a British Crown colony from 1946 to 1957. It came under British sovereignty after being ceded by the Sultanate of Kedah in 1786, and had been part of the Straits Settlements in 1946. Together with Singapore, it became a Crown colony under the direct control of the British Colonial Office in London until it was incorporated into the Malayan Union.

Singapore in the Straits Settlements refers to a period in the history of Singapore from 1826 to 1942, during which Singapore was part of the Straits Settlements together with Penang and Malacca. Singapore was the capital and the seat of government of the Straits Settlement after it was moved from George Town in 1832.