The key benefits of crusade are;
1. Led to increase in trade and travel.
2. Europe was brought to contact with many advanced cultures.
3. Wars resulted in large territorial gains for the catholics. Europeans were introduced to luxuries and spices which were not seen as previously.
The countries which fought in crusades were Egypt, Syria, Palestines, and Lebanon.
Crusade was successful to the third crusade reason being, they had a religious based purpose and organized.
They later failed because of greed and ineptitude.
