 Once selected, KATUSAs must complete six-weeks of ROK Army basic training.A brief orientation and OJT is conducted by the U.S. Army before they begin their full-time duty with a United States Army unit garrisoned in Korea for the duration of their military service.The number of candidates vying for an available opening is extremely high because many soldiers believe that the U.S. Army is less abusive and more professional in its training and treatment of soldiers compared with the ROK Army, and that junior enlisted personnel receive better treatment, have more educational opportunities (especially with regards to learning English), experience a higher standard of living, and have an overall better quality of life than their ROK counterparts.