From Honolulu, drive west on the Kamehameha Highway (HI-99) to reach the naval base at historic Pearl Harbor.  History has taught us that beginning with the 1931 Japanese invasion of Manchuria, followed by the 1937 Second Sino-Japanese War, Japan's forceful expansion into China served to increase tensions with the United States and other Western Powers. In 1940, when Japan moved to occupy French Indochina, the United States reacted by banning all exports of scrap iron, steel and oil to Japan.  Faced with the loss of their main oil supply, the Japanese strategically turned their eyes toward the wealth of oil and other natural resources in the Dutch East Indies.