The battle opened with the Japanese 5th Army attacking the left flank of the Russian forces on 20 February. On 27 February 1905 the Japanese 4th Army attacked the right flank, while other Japanese forces also attacked the Russian front lines. On the same day, the Japanese 3rd Army began its movement in a wide circle northwest of Mukden. By 1 March 1905, action on the eastern and center fronts was largely static. The Japanese had made small advances but under heavy casualties. However, by 7 March, General Kuropatkin began withdrawing forces from the eastern front to counter the Japanese 3rd Army's moves on the western flank of Mukden, and was so concerned about General Nogi's movements that he decided to lead the counterattack himself. The shifting of forces from east to west was not well coordinated by the Russians, causing the 1st and 3rd Manchurian Armies to all but disintegrate into chaos. Then Kuropatkin decided to withdraw his troops north towards Mukden to face the Japanese forces head-on on the city's southwest and at the banks of the
Hun River in the city's southeast. Then Field Marshal Ōyama seized the chance he had been waiting for, and his orders to "attack" were changed to "pursue and destroy". Luck was further with the Japanese due to the late thaw in the weather. The Hun River, guarded by the Russian left flank commanded by Major General
Mikhail Alekseyev, remained frozen, and was not an obstacle to the Japanese attack. However, as they crossed the river, the Japanese attack was hampered when they encountered stiff resistance and heavy artillery fire coming from the Russians, now commanded by General
Paul von Rennenkampf, resulting in yet more heavy casualties. After heavy fighting the Japanese succeeded in taking the northern bank of the river, causing the Russian defense lines defending the bank to collapse and the far edge of their left flank to be partially cut off from the rest of the main body of Kuropatkin's army. At the same time a salient was formed just 15 kilometers west of Mukden, enabling the Japanese to totally encircle the Russians on their right flank in the process. All but encircled and with no hope for victory, General Kuropatkin gave the order to retreat to the north at 18:45 on 9 March. The Russian withdrawal was complicated by General Nozu's breach through Russian rearlines over the Hun River. At 10:00 AM on 10 March, Japanese forces occupied Mukden. After they occupied Mukden the Japanese continued their hard-driven pursuit of the Russians, but this was hampered when Ōyama knew that his army's supply lines were stretching too thin; however, he continued the pursuit of the enemy, though in a lazy, slow manner. The pursuit was stopped 20 kilometers short of Mukden, but the Russians were already fleeing farther north from Tiehling towards the Sino-Russian border at a fast pace, and the battle was over with the Japanese as the victor. Throughout the battle, many foreign military observers were present in order to observe how the next great war might be fought. The Battle of Mukden heavily foreshadowed the tactics to be used in
World War I. ==Conclusion==