Postage stamps and postal history of Singapore British colonial rule, Singapore grew in importance rapidly becoming a major port city. During World War II, Singapore was occupied by Japan from 1942 to 1945. After the war, Singapore reverted to British control, with increasing levels of self-government being granted, culminating in Singapore's merger with the Federation of Malaya to form Malaysia in 1963. Singapore became an independent republic on 9 August 1965. Singapore was originally part of the Straits Settlements and used the colony's stamps. During World War II, Singapore was occupied by the Japanese between 1942 and 1945. After the surrender of the Japanese Occupation forces at
Resistance during World War II occupied Poland during World War II, essentially a continuation of the Zamosc Uprising. During Operation Most III, in 1944, the Polish Home Army or Armia Krajowa provided the British with the parts of the V-2 rocket. Norwegian sabotages of the German nuclear program drew to a close after three years on 20 February 1944, with the saboteur bombing of the ferry SF Hydro. The ferry was to carry railway cars with heavy water drums from the Vemork hydroelectric plant, where they were produced, across Lake Tinn so they could be shipped to Germany. Its sinking effectively ended Nazi nuclear ambitions.