The feudal system .
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Western Europe has many countries, each with their own government. You may be thinking of the European Union, but this is not a government and not all countries in western Europe are members of the European Union.
Representative Democracies are typically found in Western Europe.
The "A" blood type.
It was the government of Europe for a 1,000 years.
Monarchy
They have democratic governments.
There are bears, and always have been, in Western Europe. Though the vast majority is found in Eastern Europe, there are large groups found throughout Spain, Sweden, Norway, and Italy.
Western Europe had a much stronger economy. Eastern Europe fell into poverty and more Eastern European countries became police states.
1. Russia is further East than Western Europe. 2. It covers more time zones ( at a guess) 3. Western Europe is FAR better at hiding corruption and governmental influence via money than Russia.
Some differences between Russia and Western Europe are that Russia is more Orthodox Christian and western Europe is more into Catholic religion. Russia has communism, but western Europe has democratic government. Other differences are that Russia has a strong military and loads of military weapons, but western Europe has none or less.
Western Europe had a much stronger economy. Eastern Europe fell into poverty and more Eastern European countries became police states.