[nolu chan]

[cr] A union can exist in the absence of a constitution.

Your false claim was that no constitution ever provided for its own destruction.

A constitution for a union with no members is meaningless.

The USSR constitution provided for any or all members to secede at will.

[capitan_refugio]

NO constitution ever provided for its own destruction. The USSR did not devolve by secession. The member states voted the Soviet Union out of existence.

Sorry, but those are the facts.