One bad thing tha happened was that the Muslims views on Crusaders and Europeans as a people was drastically worsened. And it's obvious why this happened; they came to their lands and wanted to reclaim them despite not having any real and legitimate claim to these lands.
Answer:
Contest
Explanation:
Ever since the first nuke was dropped on Hiroshima, Stalin felt jealous. Thus a contest went on to see who'd put nukes closer to each others country, who could build the most, and who could build the most powerful. The Cuban Missile Crisis showed how close we were to world destruction.
I believe it is BERING. Hope this helps!