He wanted to use the Mississippi for trade
B. and E. marked the downfall of the Inca empire, for obvious reasons. Disease and civil war would obviously kill the empire, and taking an important leader would also mark great chaos within the empire. A. and C. are not to be ignored however, considering that maintaining peaceful relationships with the Spaniards only brought death and chaos to the Aztecs, all from the Spaniards.
Austria used it as a flimsy excuse to start a war with Serbia, which it had been wanting to do anyway.
Quicksand. The treaty, though intended by Wilson to foster his 14 points and prevent another Great War, severely punished the defeated Germans, at the demand of Clemenceau of France and the Prime Minister of Britain. Inflation crippled the German economy, dissatisfied veterans tried to overthrow the government. In subsequent years, Hitler would use German citizens’ resentment toward the Versailles treaty the nation’s poverty to hate Jews and the Western nations, thus leading to WWII
It was an agreement with the states and was the first constitution of the United States of America.