In 1945, the Mongolian People's Republic and the Soviet Union jointly declared war on the territories and peoples of China and Inner Mongolia, which were under the control of the Japanese Empire. This was a major strategic operation to bring Soviet military forces into East Asia and defeat the Japanese and Kwantung armies in the final stages of World War II. Mongolia's participation in this war was a historic event that led to the recognition of its independence by the international community. On August 10, 1945, the Presidium of the Lower Khural of the Mongolian People's Republic and the Council of People's Ministers held a joint extraordinary meeting and officially approved the declaration of war on Japan by the Mongolian People's Republic.

Thus, the Border Troops of the Mongolian People's Republic, or the current Eighth Border Troops, were the first to advance towards Manchuria and Inner Mongolia. Let us introduce the following four newspaper articles in chronological order to show how information and positions on the Liberation War were reflected in popular newspapers and magazines in Western countries such as the United States and Great Britain.

The August 9, 1945 issue of the United States Army newspaper "The Stars and Stripes" reported under the headline "Russia Joins War Against Japan" that "the Soviet Union, with its powerful armies and allies (the United States and Great Britain), has announced simultaneously in Moscow, London, and Washington at 9:00 p.m., Rome time, Wednesday." U.S. President Harry S. Truman, in a White House briefing, announced that "the Soviet Union has declared war on Japan today." The headline "Hiroshima 60 Percent Flat; Atom Bomb Sears All Life" was the headline for the August 6, 1945, atomic bomb dropped on Hiroshima, Japan, which destroyed 60 percent (4.1 square kilometers) of Hiroshima. The bomb blast rendered the city uninhabitable and thousands of people died from radiation, heat, and the effects of the explosion.

Also, on the fifth page of the August 14, 1945 issue of the British newspaper “The Guardian” there was an article with a map of Japan under the headline “THE RUSSIAN ADVANCES”. The article stated that “On August 13, 1945, the Soviet Red Army liberated the cities of Harbin, Wangyehuan, and Linkou in the Sino-Manchurian region. In the meantime, troops of the First Far Eastern Front occupied the cities of Hulin, Shoyan, and Beilin, taking control of the railways and bridges. They have now expanded their offensive towards North Korea and penetrated key strategic areas.” The September 4, 1945 issue of the Soviet newspaper “Izvestia” included a speech by Commander-in-Chief I.V. Stalin to his people and a statement declaring September 3 as “Victory Day” for the victory over Japan in the War of Liberation.

In his speech, he said, “Comrades, dear compatriots. On September 2, 1945, the Japanese government silently signed the act of surrender. With the surrender of the Japanese, the war that the world was facing ended. The signing of this act by Japan occurred four months after the surrender of fascist Germany. Therefore, after Germany, Japan also admitted defeat. Now, after a long time, humanity can live together in peace. But at what price was this victory won? Japan waged war not only against the USSR, but also against all its allies, including China, the United States, and Great Britain. The Soviet Red Army crushed the Japanese Kwantung Army in 12 days. Manchuria, northern Korea, Sakhalin, and the Kuril Islands were liberated. The Japanese also saw the heroic participation of the Mongolian People’s Revolutionary Army and the troops of the Mongolian People’s Republic Government. The Japanese, like Hitler’s Germany, admitted defeat. Every year Celebrate September 3rd as the “Victory Day” of the victory over Japan. On this day, let there be fireworks on Red Square, and let there be a ceremonial salute with 30 cannon shots. Congratulations to our compatriots who made the country invincible. Commander-in-Chief, I.V. STALIN” declared the victory in the War of Liberation.

In line with the historical times, the New York Times of the United States reported on the end of the War of Liberation. For example, in the fourth issue of the newspaper dated October 18, 1945, an article was published with the headline “Russians are withdrawing from Manchuria, China expects to withdraw completely by November 30, 850,000 Japanese soldiers have disarmed.” The article reported that the Mongolian-Soviet command was introducing Chinese communist representatives into the city of Zhangjiakou (formerly Zhangqiao) and regions such as Shandong and Changbei to establish local administrative structures, and mentioned the strong influence of Soviet troops in the region.

This was reported to the New York Times by Henry R. Lieberman, a special correspondent from the United States in Beijing. The following newspaper articles summarize the following newspaper articles: The Soviet Union declared war on Japan in accordance with the Potsdam Declaration and invaded Manchuria. However, there is relatively little information that specifically mentions Mongolia's participation. This is due to the international political situation at the time, and it was common to see Mongolia as part of the Soviet Union.

In addition, the Middle Kingdom did not recognize the independence of Mongolia and considered it a nation that was part of its own state. This situation can be considered the reason why Mongolia's participation was not emphasized much in the international press. However, some special reports and foreign media of the time mentioned Mongolia's participation and support. For example, the notes of military experts and diplomats focused on the strategic support and military operations provided by the Mongolian side.

Historical records show that the Mongolian Border Guards captured many important points in Inner Mongolia and Manchuria in a short time and made a significant contribution to the liberation war. The issue of Mongolian independence was included in the Soviet-Chinese agreement of August 14, 1945. In it, the parties exchanged a note stating that “if the Mongolian people can prove their desire for independence through a vote after Japan recognizes its defeat, they will recognize the independence of Mongolia within the territory of that time.”

Thus, in a referendum held on October 20, 98.6% of the population supported independence. After that, the Middle Kingdom recognized the independence of the Mongolian State on January 5, 1946 and decided to establish diplomatic relations. Therefore, the Liberation War became a decisive historical event in the international recognition of the independence of Mongolia.