| Country | Year | Foreign power | % Correct |
|---|---|---|---|
| Austria | 1955 | WWII Allies | 100%
|
| Germany | 1949 | WWII Allies | 100%
|
| Italy | 1945 | WWII Allies | 100%
|
| San Marino | 1945 | WWII Allies | 100%
|
| Vatican City | 1945 | WWII Allies | 100%
|
| Ireland | 1931 | United Kingdom | 99%
|
| Malta | 1974 | United Kingdom | 99%
|
| Czech Republic | 1968 | Warsaw Pact Armies | 99%
|
| Monaco | 1943 | WWII Axis | 99%
|
| Liechtenstein | 1866 | German Confederation | 98%
|
| Albania | 1944 | Nazi Germany | 98%
|
| Belgium | 1945 | Nazi Germany | 98%
|
| Denmark | 1945 | Nazi Germany | 98%
|
| France | 1944 | Nazi Germany | 98%
|
| Greece | 1944 | Nazi Germany | 98%
|
| Luxembourg | 1945 | Nazi Germany | 98%
|
| Netherlands | 1945 | Nazi Germany | 98%
|
| Norway | 1945 | Nazi Germany | 98%
|
| Serbia | 1945 | Nazi Germany | 98%
|
| Finland | 1918 | Russia | 98%
|
| Andorra | 1936 | France | 96%
|
| Portugal | 1808 | France | 96%
|
| Spain | 1814 | France | 96%
|
| Belarus | 1991 | Soviet Union | 96%
|
| Estonia | 1991 | Soviet Union | 96%
|
| Hungary | 1956 | Soviet Union | 96%
|
| Latvia | 1990 | Soviet Union | 96%
|
| Lithuania | 1990 | Soviet Union | 96%
|
| Moldova | 1991 | Soviet Union | 96%
|
| Poland | 1945 | Soviet Union | 96%
|
| Romania | 1958 | Soviet Union | 96%
|
| Ukraine | 1991 | Soviet Union | 96%
|
| Iceland | 1944 | Denmark | 92%
|
| Sweden | 1523 | Denmark | 92%
|
| Montenegro | 2006 | Serbia and Montenegro | 92%
|
| Kosovo | 2008 | Serbia | 91%
|
| Bosnia and Herzegovina | 1992 | Yugoslavia | 91%
|
| Croatia | 1991 | Yugoslavia | 91%
|
| North Macedonia | 1991 | Yugoslavia | 91%
|
| Slovenia | 1991 | Yugoslavia | 91%
|
| Bulgaria | 1908 | Ottoman Empire | 86%
|
| Switzerland | 1815 | Austria | 82%
|
| Slovakia | 1993 | Czechoslovakia | 80%
|
| Russia | 1480 | Golden Horde | 73%
|