The Greater Korean Empire 大韓帝国
In October 1897, Emperor Gojong proclaimed the new entity at Gyeongungung Palace and oversaw the partially successful modernization of the military, economy, land system, education system, and various industries.
However, the reforms were not radical, and Korea steadily become subordinated to a big power, Japan. On August 22, 1910, Korea was annexed by Imperial Japan.
from wiki really?