When war broke out in 1950, fifteen-year-old Kim Chin-Kyung joined the South Korean army to defend his homeland. He soon found, however, that he wasn’t ready for the horrors of combat. As young friends died around him, he begged God for his life and promised that, if allowed to live, he would learn to love his enemies.

Sixty-five years later, Dr. Kim reflected on that answered prayer. Through decades of caring for orphans and assisting in the education of North Korean and Chinese young people, he has won many friends among those he once regarded as enemies. Today he shuns political…