This map shows all of the European countries Russia has been at war with at one point or another. There are only a handful of countries that don't fall into the "yes" category. However, we're sure that this could also be said for a number of other countries on this map if you go back far enough into history. Still, this map is helpful in showing why the 20th century was sort of rocky.
That goes for both sides. Some of the countries tagged "yes" on this map were the aggressors, such as France with Napoleon. The country next to Russia labeled a "no" is Belarus in case you were wondering.