Eo Jae-yeon

He served as the inspector in the Hoeryong region in 1866 and led the army of Ganghwado Island against the United States military during the U.S. expedition to Korea in 1871.

In 1841, at eighteen years of age, Eo Jae-yeon passed the military service examination, which was arranged at Ganghwado Island.

When the American Asiatic Rogers' Squadron arrived on the coast of the island in 1871, the royal council appointed Eo Jae-yeon to serve as the Commandant.

To defend against the United States' amphibious attack, Eo retaliated with cannon fire and fought to his death without retreating.

[5] Believed to be constructed of hemp or cotton and measuring approximately 4.15m x 4.35m, the rank flag 'Sujagi' bearing the Chinese character for "commanding general" was captured as a war trophy in 1871 when American troops seized Ganghwa Island during the U.S. Expedition to Korea.