When did Russia loses war with Japan?
Russo-Japanese War, (1904–05), military conflict in which a victorious Japan forced Russia to abandon its expansionist policy in East Asia, thereby becoming the first Asian power in modern times to defeat a European power.
The Anglo-Japanese Alliance was significant
Another reason why Russia lost the Russo-Japanese War was the existence of the Anglo-Japanese Alliance. The existence of the Anglo-Japanese Alliance made it possible for Japan to receive both military and financial support from the then hegemonic power of Great Britain.
The Treaty of Portsmouth formally ended the Russo-Japanese War of 1904–05. The negotiations took place in August in Portsmouth, New Hampshire, and were brokered in part by U.S. President Theodore Roosevelt.
The Russo-Japanese War (Japanese: 日露戦争, romanized: Nichiro sensō, lit. 'Japanese-Russian War'; Russian: Ру́сско-япóнская войнá, romanized: Rússko-yapónskaya voyná) was fought between the Empire of Japan and the Russian Empire during 1904 and 1905 over rival imperial ambitions in Manchuria and the Korean Empire.
The Soviets and Mongolians ended Japanese control of Manchukuo, Mengjiang (Inner Mongolia), northern Korea, Karafuto (South Sakhalin), and the Chishima Islands (Kuril Islands). The defeat of Japan's Kwantung Army helped bring about the Japanese surrender and the termination of World War II.
On August 8, 1945, the Soviet Union officially declares war on Japan, pouring more than 1 million Soviet soldiers into Japanese-occupied Manchuria, northeastern China, to take on the 700,000-strong Japanese army.
For Japan, the Kurile Islands are stolen territory, lost to Soviet aggression and Western interference. More than 70 years after the last shot was fired in World War II, the two countries remain locked in a stalemate over four wave-battered islands. (A version of this gallery was originally published in April 2017.)
During the subsequent Russo-Japanese War, Japan won a series of decisive victories over the Russians, who underestimated the military potential of its non-Western opponent.
On September 2, 1945, Japanese representatives signed the official Instrument of Surrender, prepared by the War Department and approved by President Harry S. Truman. It set out in eight short paragraphs the complete capitulation of Japan.
From May to September 1939, the USSR and Japan fought an undeclared war involving over 100,000 troops.
Did Russia make Japan surrender?
The Soviet betrayal was an important factor in forcing Japan to surrender. The Soviets launched their invasion simultaneously on three fronts in the east, west and north of Manchuria, the day after the declaration of war.
Even after Japan accepted the Potsdam Declaration, Soviet forces continued its offensive against Japan and occupied all of the Four Northern Islands from 28 August 1945 to 5 September 1945.

The U.S. destroyed far more Japanese troops than any other Allied nation. According to a report by the U.S. Army Chief of Staff, in the period between Pearl Harbor and the end of the war, the total number of Japanese troops wiped out on the Asian Front was 1.5 million.
The area saw some of history's largest battles, most horrific atrocities, and highest casualties (for Soviet and Axis forces alike), all of which influenced the course of World War II and the subsequent history of the 20th century. The German armies eventually captured some five million Soviet Red Army troops.
In August 1945, the United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki. As a result, approximately 120,000 civilians died. Japan formally surrendered in September 1945.
Under the treaty, Russia had to turn over several territories to Germany: Finland, Russian Poland, Estonia, Livonia, Courland (now part of Latvia), Lithuania, Ukraine, and Bessarabia. In addition, the Bolsheviks had to give much of the southern part of Russia to what was still the Ottoman Empire, controlled by Turkey.
After the declaration of the First Sino-Japanese War on August 1, 1894, Japanese troops scored quick and overwhelming victories on both land and sea. By March 1895, the Japanese controlled Shandong province and Manchuria and commanded the sea approaches to Beijing. The Chinese sued for peace.
Japan was more industrialized than China on the eve of the Japanese invasion. The Japanese could produce equipment like fighter planes indigenously, while the Chinese couldn't. As a result, the Japanese had a decisive advantage.
Late in the night on February 8, 1904, Japan launched a surprise attack against the Russian-held Port Arthur, along the coast of Manchuria, beginning the Russo-Japanese War.
For the Japanese, surrender was unthinkable—Japan had never been successfully invaded or lost a war in its history.
Who won ww2 USA or Russia?
The Allied Powers won the war. The USA was one of the Allied Powers, and Russia was part of the Soviet Union, which also fought with the Allied Powers. So, you could say that both the USA and Russia won World War 2.
It was the deployment of a new and terrible weapon, the atomic bomb, which forced the Japanese into a surrender that they had vowed never to accept. Harry Truman would go on to officially name September 2, 1945, V-J Day, the day the Japanese signed the official surrender aboard the USS Missouri.
Although the human losses from World War II were on a wider scale, Soviet recovery after 1945 was also more rapid. The economy was in far better shape than in 1921.
The atomic bombings of Hiroshima and Nagasaki were the reason for Japan's surrender and the end of World War II.
The United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945, respectively. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only use of nuclear weapons in armed conflict.
Nuclear weapons shocked Japan into surrendering at the end of World War II—except they didn't. Japan surrendered because the Soviet Union entered the war. Japanese leaders said the bomb forced them to surrender because it was less embarrassing to say they had been defeated by a miracle weapon.
Japan has been working since then to enhance relations with Russia, both political and economic, through a series of political dialogues.
The number who surrendered in the weeks after August 9 is astounding—between 1.6 and 1.7 million men. This was just under half of the 3.5 million Japanese combatants left abandoned outside of Japan when Emperor Hirohito announced his country's acceptance of Allied terms.
During the subsequent Russo-Japanese War, Japan won a series of decisive victories over the Russians, who underestimated the military potential of its non-Western opponent.
After Japan agreed to surrender on August 14, 1945, American forces began to occupy Japan. Japan formally surrendered to the United States, Great Britain, and the Soviet Union on September 2, 1945.
Who helped to defeat Japan in ww2?
As the United States dropped its atomic bombs on Hiroshima and Nagasaki in August 1945, 1.6 million Soviet troops launched a surprise attack on the Japanese army occupying eastern Asia. Within days, Emperor Hirohito's million-man army in the region had collapsed.