The Mandalorian Neo-Crusaders were an order of Mandalorians sponsored by Mandalore the Ultimate following the end of the Great Sith War and his own ascension to the position of Mandalore. Named after the original Mandalorian Crusaders, they fought the Mandalorian Wars, and were later regrouped and reformed under Mandalore the Preserver.
The headquarters of the Mandalorian Neo-Crusaders, while under the command of both Mandalore the Ultimate and Mandalore the Preserver, was a sprawling complex that was built amidst the dangerous jungles of Dxun.
Cassus Fett considered the Neo-Crusaders to be a New Order in contrast to the Republic, which he saw as the Old Order. Ironically, despite the fact they were the ones who started the Mandalorian Wars and fought against the Republic and the Jedi, after they were rallied by Canderous Ordo, they indirectly aided the Onderon Royalists in their civil war, and ultimately fought alongside the TSF and Republic forces in the Battle of Telos.