skos:altLabel | - bloc
- Opposition Bloc
- secret alliance
- Bloc of Oppositions
- Conspiratorial Bloc
- Right - Trotskyist bloc
- Trotskyite-Zinovievite bloc
- \"Bloc of Rights and Trotskyites\"
- anti-Stalin bloc
- bloc of opposition
- bloc of oppositions
- bloc with Leon Trotsky
- clandestine political bloc
- conspiratorial bloc
- conspiratorial political bloc
- leftist and rightist oppositions
- opposition bloc
- oppositional bloc
- political bloc
- secret bloc
- secret opposition bloc
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