Russo-Japanese War (1904-05) - Reasons and Consequences

The Russo-Japanese War was the first major armed conflict of the 20th Century. It was fought between an emerging Japanese Empire and the Russian Empire. The war continued for one year and seven months and ended with a decisive victory for Japan. It was the first time an Asian power defeated a European power in modern warfare.The conflict altered domestic politics in both countries and made Japan a dominant power in East Asia.

Reasons and Background

Russian Expansion

The Russian Empire started eastward expansion in the 16th Century. It secured Siberia in the 18th Century and then established its influence in Manchuria. In 1900, Russia annexed Manchuria during the Boxer Rebellion in China on the pretext of securing the Chinese Eastern Railway from attacks. 

Russia had already obtained the strategic warm-water Port Arthur (Lüshun) in 1898, through a forced 25-year lease from China. It assisted the Eurasian empire to increase its maritime trade and naval presence in East Asia. All these aggressive steps alarmed the Japanese Empire.

Japanese Ambitions

After the Meiji Restoration (1868), Japan rapidly transformed from a feudal society to a modern industrialized empire. Its comprehensive victory in the First Sino-Japanese War (1894–1895) gave it influence in Korea and Taiwan. However, the Triple Intervention (Russia, France, and Germany) forced Japan to return Port Arthur to China. Later, China leased it to Russia.

Clash over Korea and Manchuria

Japan considered Korea vital to its security, while Russia viewed Manchuria as essential to its imperial ambitions. During negotiations before the war, Japan offered to accept the Russian supremacy over Manchuria if Russia accepts the same for Japan over Korea. However, Russia wanted to establish a neutral buffer zone in the northern part of Korea, which was unacceptable for Japan. This resulted in the failure of the diplomatic negotiations, leading to the war.

Russo-Japanese War was fought to control Korea and Manchuria

Course of the War

Surprise Attack on Port Arthur (February 1904)

The war erupted on the night of 8th and 9th February 1904 with a surprise Japanese naval assault on the Russian fleet at Port Arthur even before the declaration of the war. The battle remained inconclusive, but it panicked Russians and set the stage for further Japanese raids. On February 10, Japan declared war on Russia. 

Battle of the Yalu River

It was the first major land battle of the Russo-Japanese War, fought on April 30 and May 1, 1904. The battle ended with a clear victory for Japan, which forced the Russians to retreat across the Yalu river. The victory enabled Japan to launch an invasion of Manchuria.

Siege of Port Arthur

The Japanese military laid siege to Port Arthur on August 01, which continued for over five months. This makes it the longest and the most destructive land battle of the war. The battle took the lives of thousands of soldiers from both sides. 

It resulted in a comprehensive Japanese victory after the surrender of Russia and the destruction of the Russian Pacific fleet. The capture of Port Arthur was one of the major reasons behind the war, which the Japanese achieved after its successful siege.

Naval Battles in August 1904

On August 10, 1904, some Russian ships tried to escape the Japanese siege of Port Arthur and join other ships in Port Vladivostok (Russia). The effort failed due to losses suffered after the timely intervention from the Japanese Navy. The Battle of the Yellow Sea was the first major naval battle between modern steel battleships.

Four days later on August 14, three Russian armoured cruisers from Port Vladivostok attempted to assist the besieged Port Arthur fleet. In the Battle off Ulsan, the Japanese cruisers forced them to retreat after sinking and damaging the Russian ships. The battle assisted Japan to tighten its siege of Port Arthur.

Battle of Liaoyang

The battle of Liaoyang was the first large-scale military engagement between Japan and Russia in Manchuria. The battle started with the Japanese attacks on the Russian positions in Liaoyang, a heavily fortified city, on August 24, 1904. Both forces had over 100,000 soldiers in this important battle. 

After initial attacks, the Japanese moved forward swiftly from various directions. This forced the Russians to abandon their positions and retreat northward towards Mukden to escape encirclement. Despite losing the battle, the majority of Russian forces managed to retreat orderly. Both militaries suffered thousands of casualties during the battle.

Battle of Mukden

Japanese and Russian land forces fought their largest and decisive land battle at Mukden, now Shenyang. More than 500,000 soldiers from both sides took part in this significant battle. The Japanese devised a plan to partially encircle the Russian from three sides to cut-off their supply lines and escape routes. Russians tried to defend their positions bravely but could not resist for long. After sustaining casualties, the Russians escaped north through a narrow corridor. The Japanese captured Mukden on March 10, 1905. 

Battle of Tsushima (27-28 May 1905)

The Battle of Tsushima was the last naval battle between Japan and Russia during this conflict. It was fought between the Japanese naval fleet and the Russian fleet arriving from the Baltic Sea to assist the Russian Army in Manchuria. However, the Russian fleet had already exhausted due to a 7-month long voyage. Moreover, the Russians had slower ships compared to the modern and fast Japanese warships. 

It proved to be a one-sided battle in favor of Japan, resulting in the almost annihilation of the Russian fleet. The devastating defeat forced Russia to accept the Treaty of Portsmouth. Japan compares this victory to their victory against the invading Mongols in the 13th Century. 

End of the War and Treaty of Portsmouth

The war ended with the Japanese invasion of Sakhalin (7th to 31st July 1905). Japan easily captured the island of Sakhalin (now in Russia) which forced Russia to accept its defeat. 

Japan and Russia signed the Treaty of Portsmouth on September 5, 1905, under the mediation of the USA. According to the treaty, Japan gained Korea and Port Arthur, while Russian troops withdrew from Manchuria. Sakhalin was divided between Japan and Russia. Despite conceding defeat, Russia didn’t pay war money to Japan.

Consequences of the Russo-Japanese War

For Japan

• Japan gained complete control over Korea and on the southern part of Sakhalin. The victorious empire also gained economic rights in southern Manchuria and Port Arthur. 

• Despite winning the war, Japan could not get repatriations from Russia in the Treaty of Portsmouth. The war had caused financial strain on Japan, which impacted negatively in the short-term. This caused discontent among Japanese nationalists who staged Hibiya riots (5 to 7 September, 1905) in Tokyo. The incident caused several deaths and arrests, and eventually the collapse of the government. 

• A decisive victory in the Russo-Japanese War encouraged Japan to extend its empire. Therefore, Japan entered into several military conflicts between 1905 and 1945. The most prominent ones were WWI (1914-18), Russian Civil War (1918-22), invasion of Manchuria (1931-32), the Second Sino-Japanese War (1937-45), and WWII (1941-45).

For Russia

• Russian defeat resulted in humiliation for the military and severe financial weakness. The unrest resulted in the 1905 Russian Revolution. It forced the Tzar to establish Dufroma and move from an absolute to a constitutional monarchy. 

• After this humiliating defeat, Russia diverted its attention from East Asia to the Balkans. This policy initiated new conflicts in Europe and played a part in starting World War I. 

For the World

• This victory cemented the place of Japan as a global power and proved that despite their technological advancements, European powers are not invincible. It inspired many Asian countries against European colonists.

• The Russo-Japanese War enabled the USA to act as a mediator in global affairs. The US convinced both warring sides to reach consensus on a middle ground through the Treaty of Portsmouth. Theodore Roosevelt became the first US president and the first statesman to win a Nobel Peace Prize in 1906 due to his role in this treaty. [1]

Reasons Behind Japan’s Victory

Logistical Advantage

Japan fought this war closer to its home, providing advantage of shorter supply lines. Russia, on the other hand, had to transport men and materials from thousands of miles away. Moreover, they had only a single, newly-built, and reliable supply route of the Trans-Siberian Railway. This made it impossible for the Russians to transport necessary equipment timely.

Anglo-Japanese Relations

Military and diplomatic relations between Japan and the British Empire grew stronger before the war. Japan had several modern naval warships, built in British shipyards. Britain also assisted Japanese officers in specializing modern gunnery and naval tactics. All these practices proved beneficial during the war, particularly in the decisive battle of Tsushima.

The two empires signed the Anglo-Japanese Alliance in 1902 to counter Russian expansion in East Asia. One clause of the treaty made it mandatory for both nations to assist each other if one fights against multiple threats. This prevented the participation of France in the war in favor of  Russia. Therefore, Japan easily handled a comparatively weaker Russian military.

Japan’s Superior Military 

After the Meiji Restoration in 1868, Japan modernized its military for decades. Both army and navy became more disciplined, organized, well-equipped with modern weapons, and gained experience in using the latest technology. All these features made them superior to the ill-equipped and less-modernized Russian forces.

Effective Leadership

Japanese commanders, such as Admiral Tōgō and General Ōyama Iwao, proved capable by adopting tactical coordination and flexibility according to the battlefield requirements. Their coordination proved effective in achieving success on land and sea battles. Comparatively, many Russian generals suffered from poor coordination and used outdated tactics that failed in modern warfare.

Underestimation

Russian leadership considered Japan, an Asian power, inferior to them. Therefore, they didn’t devise a formidable strategy to overcome their weaknesses during the war. It resulted in their complete failure. 

Conclusion

The Russo-Japanese War was not just a regional conflict. It had a global impact that shattered the myth of European invincibility and ignited nationalist movements across Asia. Japanese comprehensive victory set the stage for the empire’s future expansion in the Pacific. The humiliating defeat for Russia exposed its internal flaws and helped trigger the revolutionary tide through the 1905 Russian revolution. The resultant unrest eventually toppled the Tsarist regime in 1917.