Answer:
The re-establishment of friendly relations; conciliation, rapprochement is reconciliation.
It provided wealth of china, and made china have more land
It is important because if you dont compromise it could lead to bad things.
During the cold war, all of us know that America and the Soviet Union were putting the best scientist of there country in the front to develop weapons of mass destruction.
What most don't know is that not only the Russians but the Americans had embedded spies in them to recover weapon specs and also the science between them. In fact, the cold war is known as the golden-age of espionage.