Siege of Port Arthur
The Japanese 3rd Army was initially raised during the Russo-Japanese War under the command of General Nogi Maresuke. In the initial stages of the war, its primary mission was the Siege of Port Arthur. After the fall of that Russian stronghold, it was transferred north, where it played a crucial role in the subsequent Japanese drive towards Mukden in the closing stages of the war. It was disbanded at the end of the war.