 Complete the following phrase:  The Ayyūbid-Crusader Wars began when truces attempted in the aftermath of The Zengid-Crusader Wars and Fatimid-Crusader Wars and their likes ended up violated by those such as Sir Reynald de Châtillon, Master Edessa Count Joscelin de Courtenay III, Knights Order Of Templars Grandmaster Sir Odo de St Amand, along with later on Knighthoods Templar Order Grandmaster Sir Gérard de Ridefort and by religious fanatics including newly arrived ones from Europe, and by attempts by ones like Salāḥ ad-Dīn Ayyūb And His Ayyūbid Dynasty and their Saracen Armies who together after they became leaders of in succession to Nur ad-Din had vowed to punish those like Sir Reynald and to perhaps so reclaim Jerusalem for the Muslims. The Battle of Montgisard, The Belvoir Castle Battle, and as well as The Two Sieges Of Kerak Castle were some victories for The Crusaders, all whilst The Marj Ayun Battle, 