Battle of Hwangsanbeol

[1] By the time King Muyeol was able to gain the support of Emperor Gaozong of Tang China to conquer Baekje.

King Uija had led Baekje into demise as his parties and dissipation caused neglect for state affairs.

In 660, Kim Yu-sin of Silla set out with fifty-thousand troops to rendezvous with the Tang army (size about: 122,711 to 130,000 men[1]) which was being shipped over the sea.

The Silla forces gradually lost morale, and the General Kim Pumil sent his young son and Hwarang, Gwanchang, to single-handedly go out and fight the enemy.

There is a Korean comedy/war film about this battle, called Once Upon a Time in a Battlefield (황산벌; Hwangsanbul), starring Park Joong-hoon and Jung Jin-young.