Because they could be turned into slave states, giving more power to the slaveowners in the south. Also, expansion policy and the dram of Manifest Destiny played a part in desiring that land.
The answer is D, after the gulf of Tonkin resolution the war in Vietnam began to escalate.
Because there will always be water on earth, meaning that the cycle will never stop. And because the cycle is continuous and natural. I don't think anything can stop it from happening.
IF there is multiple choice let me know it would really help.
however i believe this is called tax reform
