1. VIIIth Party Congress

    · Moscow, Russian Soviet Federative Socialist Republic (now Russia)

    VIIIth Party Congress
    Wikimedia Commons · Public domain in the United States because it was published before January 1, 1931 · file

    Trotsky faced a direct challenge from the Military Opposition at the Eighth Party Congress. Moscow is the congress location; the source's wording identifies Trotsky as directly participating in the confrontation.

All 58 moments of Leon Trotsky →