What political circumstances in europe led to world war one?

What is the main reason the united states removed the taliban from power shortly after the september 11 2001 attacks ?

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

The clergy comprised the wealthy first estate with members of noble descent in particular having a great deal of power. what was the source of the clergy’s wealth