The Bolsheviks decided to immediately make peace with the German Empire and the Central Powers, as they had promised the Russian people before the Revolution. Vladimir Lenin's political enemies attributed that decision to his sponsorship by the Foreign Office of Wilhelm II, German Emperor, offered to Lenin in hope that, with a revolution, Russia would withdraw from World War I. That suspicion was bolstered by the German Foreign Ministry's sponsorship of Lenin's return to Petrograd. However, after the military fiasco of the summer offensive (June 1917) by the Russian Provisional Government had devastated the structure of the Russian Army, it became crucial that Lenin realize the promised peace. Even before the failed summer offensive the Russian population was very skeptical about the continuation of the war. Western socialists had promptly arrived from France and from the UK to convince the Russians to continue the fight, but could not change the new pacifist mood of Russia.