Whenever there is a revolution, it means that there's progress being involved.
Answer:
The Battle of Stalingrad. Marked by fierce close quarters combat and direct assaults on civilians by air raids, it is often regarded as one of the single largest (nearly 2.2 million personnel) and bloodiest (1.7–2 million wounded, killed or captured) battles in the history of warfare.
Explanation:
Well, when it was originally formed, the function of the secret police in soviet union was to investigate counter revolutionary crimes. After the reign of Joseph stalin, the secret police gained punitive power and renamed into People commisariat of internal affairs.
Answer:
The Cold War.. Military alliances were formed as the West grouped together as NATO, and the East banded together as the Warsaw Pact. By 1951, Europe was divided into two power blocs, American-led and Soviet-led, each with atomic weapons. A cold war followed, spreading globally and leading to a nuclear standoff.