Upon conquering Jerusalem, the crusader-settlers were faced with an entirely new dilemma: their survival in a hostile territory far from home. This programme will tell the untold story of the crusades--one that charts the complexity of Muslim-Christian relations. In the wake of conquest, the crusader-settlers embark on lavish building projects in their new territory, not only refurbishing the Christian holy sites such as the Church of the Holy Sepulchre, but also constructing a fantastic chain of fortresses along the Mediterranean perimeter of the kingdom to protect it from invasion.