Final defensive lines before the attack on Singapore 1942

This interesting map shows the defensive lines around Singapore in preparation to defend the island from the attacking Japanese forces in 1942. History tells us that the diversionary attack on the small island of Pulau Ubin on the North East succeeded in bluffing defending forces command that it was the start of the main attack. However, the full force of the main invasion occurred on the North West side of the island. The rest is history