The Indians were tired of the British mutiny that is caused. The Indians attempted to escape but failed on many attempts. British rule over the indians lasted from 1857-58
"The Truman Doctrine was an American foreign policy whose stated purpose was to counter Soviet geopolitical expansion during the Cold War."
The U.S. in 1846 was not justified in going to war with Mexico, they didn't have justification to respond with violence.
He was originally negotiating with for access to the mouth of the Mississippi River in New Orleans. France was low on money at the time, and in need of a lot of money to fund more of Napoleon's battles - so France offered their ENTIRE Louisiana Territory instead of just New Orleans for only three cents an acre