Last I looked there were more than two members in the council, and also USSR hasn't been a member since 1991 if I recall correctly. Anyway here's the current list for you convenience: https://www.un.org/securitycouncil/content/current-members
If the bylaws of the security council contained the risk of exclusion or at the very least loss of veto, I think both the US and Russia would more carefully contemplate the cost of the invasions they are guilty of.
If the bylaws of the security council contained the risk of exclusion or at the very least loss of veto, I think both the US and Russia would more carefully contemplate the cost of the invasions they are guilty of.