What was the cause of the crusades. now

The crusades were military expeditions to (re) claim Christian access to the holy sides of Christianity in the Holy Land, mostly in and around Jerusalem. The crusades were initiated after the pope called for them.

(sorry that it's so late, hopefully it still helps)

France played a key role in the american revolutionary war (american war of independence; 1775–1783). motivated by the ideals of the new nation which were inspired by the french enlightenment, as well as its long-term rivalry with britain and so as to avenge their territorial losses during the french and indian war, france secretly began sending supplies to the americans in 1775.