buddy system noun during the Korean war, a plan teaming American and Korean soldiers in the hope of providing one-on-one mentoring and training US
This was the much-vaunted “buddy system” under which the Koreans were paired off with Americans who were supposed to give them on-the-job training in the soldier’s craft. — Robert Leckie, TheWars ofAmerica,VolumeII, p. 353, 1968