The two leaders secretly plan to divide Poland and other parts of Eastern Europe between them ... Britain and France declare war on Germany. World War II begins. May: As Germany marches into ...

World War I involved 32 nations from 1914 to 1919. It redrew the world map and reshaped many borders in Europe. The collapse of the Russian Empire created Poland, the Baltics, and Finland.

Russia has lost about twice as many men to death and serious injury as Ukraine. But the trends favor the Kremlin.

A new map has shown Vladimir Putin's "shadow war" being fought on NATO territory including in the US, Europe and the UK. A report by the US Helsinki Commission, also known as the Commission on ...