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.
It shows that they were willing to sacrifice there own people in an effort to overtake the US
.
Hope this helps
.
Zane
Prior to the Qing Dynasty, China had resisted foreign influence because they "were geographically too hard to reach" since many mountain regions provided protection.