At a meeting of his faction at the Tenth Party Congress in March 1921, Lenin's faction won a decisive victory, and a number of Trotsky's supporters (including all three secretaries of the Central Committee) lost their leadership positions. Krestinsky was replaced as a member of the Politburo by Zinoviev, who had supported Lenin. Krestinsky's place in the secretariat was taken by Vyacheslav Molotov. The congress also adopted a secret resolution on "Party unity", which banned factions within the Party except during pre-Congress discussions. The resolution was later published and used by Stalin against Trotsky and other opponents. At the end of the Tenth Congress, after peace negotiations had failed, Trotsky gave the order for the suppression of the Kronstadt rebellion, the last major revolt against Bolshevik rule.