In April 1917, Scandinavian, Dutch and Russian socialists thought that the warring nations should make peace - the same month that the U.S. decided to join the war. A peace conference was organized, to be held in Stockholm. The British, French, Belgian and Russian governments opposed the conference. So too did President Wilson of the United States. Lenin was opposed to his Bolsheviks supporting or attending such a conference. Lenin believed that those socialists and labor activists supporting the conference were insufficiently revolutionary. He wanted to build a rival workers' international. The warring powers helped him in this. They refused passports to anyone wanting to attend the conference, and the conference never occurred. In Russia, members of those councils called soviets were radicalized by the resistance of the belligerent powers, including that of the Provisional Government in Russia, to make peace. Delegates to the soviets swung their support to those who were most militant in their opposition to the war: the Bolsheviks. And with majority support in the Soviets, Lenin pushed one of his other positions: "All power to the Soviets," his rationale for the coup d'etat that became the Bolshevik revolution.