Senior Enlisted Leaders (SELs) from all branches of the Republic of Korea (ROK) and United<br /> States militaries must be physically, mentally, and emotionally prepared to lead their<br /> subordinates in combat operations throughout the daunting terrain of the Korean peninsula. SELs<br /> must also lead by example to inspire their subordinates. To validate ROK-U.S. SELs and to<br /> reaffirm their proficiency as enlisted leaders, USFK U.S. Forces Korea hosts its annual<br /> Mangudai event.