During the Japanese Invasion in 1952, Japanese captured many people as prisoners of war. King Seonjo pitied them and wrote this letter of consolation. General Gwon Tak, who was the head of Gimhae Fortress, took this letter and infiltrated into the enemy camp, killed many Japanese soldiers and rescued hundreds of people.This letter was written in Korean so that people could read it easily. This letter is a very important material as it expresses the king's deep felt sympathy for people.