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There can be no justification to admit, in any way, the use of armed forced to intervene in the internal affairs of a WTO [Warsaw Treaty Organization] member country. The solving of domestic problems belongs exclusively to the Party and people of each country and any kind of interference can only do harm to the cause of socialism, friendship and collaboration among the socialist countries.

Commencement address at the Romanian Military Academy August 14, 1968. "The Prague Spring and the Warsaw Pact Invasion of Czechoslovakia, 1968: Forty Years Later". Book by M. Mark Stolarik, 2010.
There can be no justification to admit, in any way, the use of armed forced to intervene in the internal affairs of a WTO [Warsaw Treaty Organization] member country. The solving of domestic problems belongs exclusively