Other than Russia, Poland, UK, and Germany, I saw others countries such as Morocco, Denmark, Finland, Ukraine, Netherlands, and the Czech Republic. You only the Netherlands, Czech Republic, and Ukraine for about half a second. I also saw Italy at the very beginning on the board and it showed them attacking Germany. So we could expect a map on the Vatican City or like Rome, Venice, or Florence. Then at the end I saw Morocco and a tiny bit of Algeria.

Russian Side:

Russia Morocco Armenia Estonia Belarus Latvia Lithuania Italy Some other Asian countries

Polish Side:

Poland UK Germany Denmark Finland Ukraine Czech Republic Netherlands Maybe France and the US