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1.Yugoslavia was a member
NATO
✓
Warsaw Pact
✓
None
✓
Yugoslavia was neutral during the Cold War despite being communist.
2.Its headquarters was in Athens
NATO
✓
Warsaw Pact
✓
None
✓
NATO's was in Brussels and the Warsaw Pact's was in Moscow.
3.Had a member which permanently left
NATO
✓
Warsaw Pact
✓
Both
✓
Albania left the Warsaw Pact in 1968.
4.Had a compass rose on its flag/symbol
NATO
✓
Warsaw Pact
✓
Both
✓
5.Was also known as the "Treaty of Friendship, Cooperation and Mutual Assistance"
NATO
✓
Warsaw Pact
✓
6.Was founded in 1949
NATO
✓
Warsaw Pact
✓
Both
✓
The Warsaw Pact was founded in 1955.
7.Is associated with the CSTO (Collective Security Treaty Organisation)
NATO
✓
Warsaw Pact
✓
Both
✓
8.Was located in three continents (Not counting overseas territories)
NATO
✓
Warsaw Pact
✓
Both
✓
NATO was located in North America (USA and Canada), Europe and Asia (Turkey). The Warsaw Pact was located in Europe and Asia.
9.Had a member which doesn't exist currently
NATO
✓
Warsaw Pact
✓
Both
✓
NATO had West Germany and the Warsaw Pact had the USSR, Czechoslovakia and East Germany.
10.If one or more members of this organisation get invaded, the rest defend the invaded member or members
NATO
✓
Warsaw Pact
✓
Both
✓
11.The Soviet Union (USSR) requested to join this organisation
NATO
✓
Warsaw Pact
✓
Both
✓
The Soviet Union made a request to join NATO in 1954.
12.Had a larger land area (Greenland doesn't count)
NATO
✓
Warsaw Pact
✓
NATO = 23,314,209 km² and the Warsaw Pact = 23,394,062 km².
13.Had territory in the Caucasian region
NATO
✓
Warsaw Pact
✓
Both
✓
Turkey has territory in the Caucasian region aswell as Russia, Georgia, etc.
14.Norway was a member
NATO
✓
Warsaw Pact
✓
None
✓
Norway joined NATO in 1949
15.Bordered the Rhine river
NATO
✓
Warsaw Pact
✓
Both
✓
The Rhine river is located in the Benelux, France, western Germany and Switzerland.
16.Bordered Lake Balaton
NATO
✓
Warsaw Pact
✓
Both
✓
Lake Balaton is located in Hungary which was part of the Warsaw Pact.
17.Owned Checkpoint Charlie
NATO
✓
Warsaw Pact
✓
Both
✓
18.Was created to counter the other organisation
NATO
✓
Warsaw Pact
✓
19.Had observer states (Definition: A country in a organisation which has applied but hasn't became a full member yet.)
NATO
✓
Warsaw Pact
✓
Both
✓
Mongolia was an observer states of the Warsaw Pact from 1963 until the organisation's dissolvement. France doesn't count as it only withdrew from the military command and not NATO itself.
20.Had more tanks in Europe (As of 1989)
NATO
✓
Warsaw Pact
✓
Both (Approximate Tie)
✓
NATO estimates: NATO = 16,424 and the Warsaw Pact = 51,500. Warsaw Pact estimates: NATO = 30,690 and the Warsaw Pact = 59,470.