Crusades

Acre is a historic walled port-city with continuous settlement from the Phoenician period.
Acre

These two castles represent the most significant examples illustrating the exchange of influences and documenting the evolution of fortified architecture in the Near East during the time of the Crusades
Krak des Chevaliers

The Crusades played a major role in European territorial expansion and also militarized the Western church.
The impact of the crusades

A timeline, the theatre of war, the targets, and the participants—the basics of crusading are covered here.
The when, where and who (of crusading)

Crusaders saw their enemies as a threat to God, and many went to war to make amends for their own sins.
How was crusading justified?

Crusading took many forms. Historians grapple with how to define these holy wars—Muslim and Jewish sources help.