After a daylong battle, Kwan Chang was again captured. After he had been disarmed, he broke free of his two guards, killing them with his hands and feet, and then attacked the Paekche general's second in command. With a flying reverse turning kick to the head of the commander, who sat eight feet high atop his horse, Kwan Chang killed him. After finally being subdued once more, he was again taken before the Packche general. This time Gae-Baek said "I gave you your life once because of your youth, but now you return to take the life of my best field commander." He then had Kwan Chang executed and his body returned to the Silla lines. General Kim Pumil was proud that his son had died so bravely in the service of his king. He said to his men, "It seems as if my son's honor is alive. I am fortunate that he died for the King." He then rallied his army and went on to defeat the Paekche forces.
The spirit of the Hwarang was present in all of the kingdoms of Korea during this time, and although not as evident as in Silla, it was demonstrated by such great Korean historical figures as Yon-Gye, Ul-Ji Moon-Duk, and Moon- Moo This spirit was kept alive throughout history by many individuals.
Hwarang and the martial arts fell out of favor during the Joseon Dynasty (1392-1910) and adherence to the Hwarang code declined. Several Koreans did keep the code, however, notably Admiral Yi Sun-Sin who was instrumental in defeating the Japanese invasions of Korea in 1592 and 1597. The spirit of the Hwarang and their code was present in Buddhist temples by monks. For example, in the 16th century two monks who followed the Hwarang code, rallied a Buddhist army that was instrumental in driving the Japanese invasion forces from Korea.