What was the cause of the Second Crusade? Seljuks took control of the settlement of Edessa.
Seljuks stopped allowing visits to the Holy Land.
Crusaders founded more settlements in the Holy Land.
Crusaders took control of the city of Jerusalem.

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d.prevent the spread of communism outside of eastern europe.

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.