As European tension grew in the 1930s, the Swiss began to rethink their political and military situation. The Social Democratic party abandoned their revolutionary and anti-military stances, and soon the country began to rearm for war. BGB Federal Councillor Rudolf Minger, predicting war would come in 1939, led the rebuilding of the Swiss Army. Starting in 1936, he secured a larger defence budget and started a war bond system. The army was restructured into smaller, better equipped divisions and boot camp for conscripts was extended to 3 months of instruction. In 1937 a war economy cell was established. Households were encouraged to keep a two-month supply of food and basic necessities. In 1938 Foreign Minister Giuseppe Motta withdrew Switzerland from the League of Nations, returning the country to its traditional form of neutrality.