Kliment Voroshilov
Although Joseph Stalin didn't attend, the 400 elite guests at the festival included Foreign Minister Maxim Litvinov, Defense Minister Kliment Voroshilov, Communist Party heavyweights Nikolai Bukharin, Lazar Kaganovich, and Karl Radek, Soviet Marshals Aleksandr Yegorov, Mikhail Tukhachevsky, and Semyon Budyonny, and other high-ranking guests.