1/3 is about right.
Most of those countries were in the Roman empire, so the two legs of iron in Nebuchadnezzar's statue dream.
EU is the new Babylon the Great, the beast that was (Babylon), is not (at the time of John), and will be again (in our time).
Russia is the far north; the Scythians. The people the Wall of China kept out of China.
The USA is an extension of the Roman Empire through Great Britain, and is one of the nations "at the end of the earth".
The USA will be devastated by the Rapture.
The rest of the world, not so much.
We are in Ezekiel 37, headed towards Ezekiel 38, the first Gog/Magog War of all of Israel's neighbors trying to annihilate her, and losing. Badly.