2021’s The Unbrokenis the first volume in C. L. Clark’s Magic of the Lost series.
Touraine might have grown up an uncivilized believer in gods and magic had the Balladairans not taken her from her native Qazāl to educate her in Balladairian ways. She then sent to serve as a Sand, a conscript1 soldier. No other choices offered.
Balladair has enough faith in their training that they do not hesitate to send Touraine and her fellow Sands to El-Wast, in subjugated Qazāl. Back to her home country, to put down a rebellion.