Belden arrived in Syria in October 2016. He underwent training at the YPG's Academy, where he met other Western volunteers including Lucas Chapman and Tommy Mørck. Shortly after graduating from the Academy, Belden was assigned as a machine gunner on a makeshift tank for the Raqqa campaign. His unit helped to capture Tal Salman in mid-November. Brace commented that "We pushed up to Tal Saman till we had it surrounded on a half circle. Then we just bombarded the shit out of it." Many refugees fled the town and sought protection behind the YPG front line, with Belden describing "hundreds of civilians coming across for days in a row." At night, his unit stayed in whatever building they had just captured and camped out on rooftops in the cold. "The first week we were out it was awful", Belden told "Rolling Stone". After capturing Tal Salman, Belden's unit was withdrawn to Ayn Issa.