In the context of the Cold War, De Gaulle pursued a policy of "national independence" towards the Western and Eastern blocs. To this end, he withdrew from NATO's military integrated command (while remaining in the NATO alliance itself), launched a nuclear development programme and made France the fourth nuclear power. He restored cordial Franco-German relations to create a European counterweight between the American and Soviet spheres of influence. However, he opposed any development of a supranational Europe, favouring a Europe of sovereign nations. In the wake of the series of worldwide protests of 1968, the revolt of May 1968 had an enormous social impact. In France, it was the watershed moment when a conservative moral ideal (religion, patriotism, respect for authority) shifted towards a more liberal moral ideal (secularism, individualism, sexual revolution). Although the revolt was a political failure (as the Gaullist party emerged even stronger than before) it announced a split between the French people and de Gaulle who resigned shortly after.