Content guidance
Depiction or discussion of violence or suffering
Adult supervision recommended
I understand, continue
Take me back to lessons
Starter Quiz
Question 1 of 6
1
of 6
Which keyword describes an attempt to prevent goods, people or supplies from entering or leaving a certain area?
Type your answer here
Between June 1948 and May 1949, the USSR set up one of these to force the Western allies to abandon Berlin.
Need a hint?
Check