1.) globilization has had a positive effect for the most part because items that would normally cost huge ammounts of dollars now cost way less due to trade.
2.) the Reagan doctrine was a forgein policy that attempted to overwhelm the USSR by arming and aiding resistance fighters that revolted agasint communism. it affected the united states because it sparked controversy.
3.) it was caused by the Saudis imposing an embargo on oil to the united states because the united states supported isreali in the arab-isreali war.