The Netherlands, a small rich country in Western Europe, had spent centuries building up its empire. By 1940 it consisted mostly of the Dutch East Indies (now Indonesia). Its massive oil reserves provided about 14 percent of the Dutch national product and supported a large population of ethnic Dutch government officials and businessmen in Jakarta and other major cities. The Netherlands was overrun and almost starved to death by the Nazis during the war, and Japan sank the Dutch fleet in seizing the East Indies. In 1945 the Netherlands could not regain these islands on its own; it did so by depending on British military help and American financial grants. By the time Dutch soldiers returned, an independent government under Sukarno, originally set up by the Japanese, was in power. The Dutch in the East Indies, and at home, were practically unanimous (except for the Communists) that Dutch power and prestige and wealth depended on an extremely expensive war to regain the islands. Compromises were negotiated, were trusted by neither side. When the Indonesian Republic successfully suppressed a large-scale communist revolt, the United States realized that it needed the nationalist government as an ally in the Cold War. Dutch possession was an obstacle to American Cold War goals, so Washington forced the Dutch to grant full independence. A few years later, Sukarno seized all Dutch properties and expelled all ethnic Dutch—over 300,000—as well as several hundred thousand ethnic Indonesians who supported the Dutch cause. In the aftermath, the Netherlands prospered greatly in the 1950s and 1960s but nevertheless public opinion was bitterly hostile to the United States for betrayal. Washington remained baffled why the Dutch were so inexplicably enamoured of an obviously hopeless cause.