Answer:
The Battle of Stalingrad
Explanation:
It is famous for its line "Not one step back!" The Battle of Stalingrad (23 August 1942 - 2 February 1943) was a major battle on the Eastern Front of World War II in which Nazi Germany and its allies fought the Soviet Union for control of the city of Stalingrad in Southern Russia, on the eastern boundary of Europe.
The United States and the Soviet Union came to the brink of nuclear war in 1962 over Soviet missile bases in Cuba. This was referred to as the "Cuban Missile Crisis". The US was mostly concerned about the very close proximity of the missiles to its shores.
Jim Crow Laws is the answer.
Hey!
The great depression was a huge stock market crash and caused very high levels of unemployment. Therefore, the third answer is correct.
Hope this helps!