Massive retaliation

Russia is bordered by many nations. Some of the countries that border the massive nation are China, Afghanistan, Kazakhstan, and Finland.

The expansion of the European railroad helped to mobilize supplies and troops.

Arguably all nations did not receive fair treatment following World War 1. Germany was required to pay massive reparations which hindered their economy and served as a motivation for the 2nd World War.

During World War II, the Allies helped occupied nations in Western Europe by providing behind-the-lines military assistance of all kinds; later, their direct invasion of the Continent liberated these same nations. After the war, the Allies (especially the United States) provided massive material and humanitarian aid for the rebuilding of these nations.