Why did the soviet union annex half of Poland?

The Soviet Union annexed more than half of Poland in September 1939, after the signing of the Molotov–Ribbentrop Pact between the Soviet Union and Nazi Germany. The invasion of Poland was followed by the execution and imprisonment of thousands of Polish citizens.

In the letters that Christopher Columbus wrote to king and queen of Spain how did he treat his relationship their authority?

How much water did the aqueducts bring into Rome?

Henry VII and the fulfillment of the prophecy about the return of King Arthur
Who has not enjoyed the stories of the mythical King Arthur and his noble knights? The sword Excalibur in the stone that only the king of England could remove, the magic of Merlin, the Round Table of the castle of Camelot where Arthur and his knights narrated their exploits saving maidens or fightin
This is the Polish James Bond from World War II!
An ace of intelligence who, disguised as a Wehrmacht general, stole the secret plans of the Nazis. Pilot, engineer, inventor, polyglot. Spy. One of the best in his profession. Kazimierz Leskis biography is so colorful and moving that it could form the basis of one of the novels from the James Bond s
When being a journalist was a risky profession (late 19th century and early 20th century).
And I am not talking about war reporters or journalism subjected to dictatorships, but in times of peace and under a democratic government, although Winston Churchill already said:«democracy is the worst system of government, except for all the other that have been invented «. After the restoration
The fundamental laws of Francoism
Francoism was never a democratic system and, consequently, it never generated a set of laws that served to manage politics, social relations, the economy, etc., from a perspective assimilable to parliamentary democracies; It did not have, therefore, a constitution that was the backbone of the politi