How and why was Cortes able to get help from some of the indigenous peoples?

What was the president hoovers deaction to the early years of the great depression

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

Why do you think jefferson thought lewis was qualified to explore the louisiana purchase? ?