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