Article IV
In case the welfare of the Imperial House of Korea or the territorial integrity of Korea is endangered by aggression of a third Power or internal disturbances, the Imperial Government of Japan shall immediately take such necessary measures as the circumstances require; and in such cases the Imperial Government of Korea shall give full facilities to promote the action of the Imperial Japanese Government.
The Imperial Government of Japan may, for the attainment of the above-mentioned object, occupy, when the circumstances require it, such places as may be necessary from strategical points of view.