Pictures are often a very powerful way of finding out about conflicts and how they are resolved. The one below, from the Imperial War Museum archives (© IWM (BER 49-175-002) ), shows British soldiers in Berlin at the end of the Berlin blockade in 1949. You might want to investigate:
What was the Berlin blockade?
How was it resolved?
Do you think it was a successful resolution? Do you think both sides thought so?