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Battle of Motien Pass
Part of the Russo-Japanese War
Date 27 June 1904 Location Liaodong Peninsula, Manchuria Result Japanese victory
Combatants
Empire of Japan	Imperial Russia
Commanders
General Kuroki Tamemoto	General Count Fedor Keller
Strength
	25,000

The Battle of Motien Pass was a minor land conflict of the Russo-Japanese War, between the Imperial Japanese Army under General Kuroki Tamemoto and the Imperial Russian Army under General Count Fedor Keller over control of a strategic mountain pass on the main road between the coast and Liaoyang, Manchuria on 27 June 1904.

General Count Fedor Keller had assumed command of the Russian Eastern Force from General Zasulich after the Battle of Yalu River. His force of 25,000 men held Motien Pass, in the middle of Liaodong Peninsula, on the main road between Antung (modern Dandong, China) and Liaoyang. Keller, a loyal friend of General Aleksey Kuropatkin and a student of General Mikhail Skobelev, observed that the Japanese strategy was similar to that of the First Sino-Japanese War (i.e. that the three Japanese armies would converge on Haicheng, as they had 10 years previously). Kuropatin agreed, and in an effort to fortify his position at Haicheng, he began a series of complex and confusing troop movements as he endeavored to plug real or imaginary gaps in his defensive line. Keller, already weakened by the loss of men at the Battle of Te-li-Ssu, was further forced to give up two more regiments to Kuropatin's defenses at Haicheng.

The Japanese 1st Army, under command of General Kuroki Tamemoto, paused at Fenghaungshang (modern Fengheng, Liaoning Province, China) from 19 June 1904 through 25 June 1904 to await supplies and reinforcements. Kuroki decided to attack on 26 June 1904, which was, by coincidence, the same day that General Keller received orders from General Kuropatkin depriving him of yet another regiment to support the defenses of Haicheng.

Guarding the strategic Motien Pass, the Russians had three infantry regiments, three artillery batteries and a Cossack regiment. To the west was the reserve infantry regiment supported by a Cossack brigade. During the night of 25-26 June 1904, a Japanese force moved along an unguarded path to the rear of the Russian right flank. This force was supported by Maxim machine guns and mountain artillery. Another group, clad in Japanese straw sandals to mask their movements, moved around the Russian left flank undetected.

The battle began at 0515 on 27 June 1904 with a direct Japanese frontal attack. This attack faltered by 0700 due to strong artillery fire from the Russian positions; however, by 0800, the Russians found themselves all but encircled by the Japanese flanking attack. By 1000 the Russians were in full retreat towards Hsimucheng (modern Ximu, Liaodong Province, China).

The Japanese moved in to occupy Motien Pass on 30 June 1904. Casualties on both sides were relatively light, and later commentators have speculated extensively on why General Keller (otherwise known to be competent) abandoned such a strategy and easily-defendable location with so little resistance. Keller, who perished in an ill-fated counterattack to retake Montien Pass left no notes.

• Kowner, Rotem (2006). "Historical Dictionary of the Russo-Japanese War". Scarecrow. ISBN 0-8108-4927-5
• Connaughton, Richard (2003). "Rising Sun and Tumbling Bear". Cassell. ISBN 0-304-36657-9