There used to be an obscure place in China, which was later occupied by other countries. Where is it?

This description only appears in the former northeast, north of Heilongjiang and east of Wusuli River. At that time, because the Qing Dynasty banned Han Chinese immigrants, the northeast was vast and sparsely populated, and the armaments were slack, and a large area of the northeast fell into an undeveloped state. At that time, the minister of the Qing Dynasty told the emperor that the land in the northeast was barren and remote, and it was cumbersome to take it, so it was better to give it to Russia. But what about now? There are Russia's largest gold mine, the mouth of the Pacific Ocean, vast forests, rich fisheries, unobstructed inland rivers (Heilongjiang), oil and iron ore and so on. Alas, that's why people in the Qing Dynasty were superstitious and had a wrong understanding of their country. (Under the popular science, the reason why Japan didn't gain a firm foothold in the Northeast was because it discovered the role of population in border defense in the late Qing Dynasty and the Republic of China, so it opened up the Northeast, which greatly increased the population in the Northeast. Later, although Japan immigrated millions, it was a small number compared with tens of millions of Han people in the northeast, so the northeast was still ours. )

Heilongjiang is the inland river of China. After the history entered the19th century, the Qing dynasty closed its doors and its national strength declined greatly. In particular, after the Qing Dynasty entered the Central Plains and unified the world, it foolishly blocked the whole Northeast, forbidding Han immigrants on the grounds of guarding Longxing, making the vast area of Northeast sparsely populated, and only some primitive ethnic tribes lived there. Moreover, the Qing government implemented the "virtual frontier policy" in the northeast, with few troops, poor equipment and little salary. They don't know anything about the size of the northeast and the border situation, and even fewer people arrive at the mouth of Heilongjiang and Sakhalin Island.

1840, Britain launched the Opium War and opened its doors with gunboats. 1847, tsar Nicholas I appointed Muraviev as the governor of eastern Siberia, and began to vigorously promote the plan to occupy the Heilongjiang river basin in China. Since 1849, Russian troops have repeatedly invaded Heilongjiang, Songhua and Wusuli river basins in China and set up outposts. 1853 Russian troops invaded Sakhalin island. After the outbreak of the Second Opium War, Russia took advantage of the fire to rob.

1858 on may 28th, Muraviev, the governor of Russia's eastern Siberia, coerced Heilongjiang general Yishan into signing the Sino-Russian love-fainting treaty by means of threat of force and diplomatic blackmail. Through this treaty, Russia occupied more than 600,000 square kilometers of territory south of Xing 'an Mountains and north of Heilongjiang, which turned Heilongjiang from an inland river into a border river between China and Russia, and classified 400,000 square kilometers of land from Wusuli River, including Vladivostok, to the East China Sea as "China and Russia".

After the signing of the Aihui Treaty, the Qing government refused to recognize it, and Yishan was dismissed and retained. Later, he was relieved of his command and transferred back to Beijing. 1In July, 860, Russian warships brazenly occupied Vladivostok and renamed it Vladivostok (meaning "controlling the East"), thus realizing the actual occupation of the east of the Ussuri River.

In August of the same year, Britain, France and other Eight-Nation Alliance occupied Tianjin; In September, Emperor Xianfeng fled from Beijing to Jehol; In June 5438+10, Eight-Nation Alliance captured Beijing and burned the Yuanmingyuan. Russia took the opportunity of "mediation" and threatened to use force in the name of "active mediation", forcing the Qing government to sign the Sino-Russian Beijing Treaty (also known as the Sino-Russian Beijing Extension Treaty) in June 1 14, which not only forced the Qing government to recognize the effectiveness of the Aihui Treaty, but also put the relevant provisions of the Treaty into practice.

Since then, except for the right to enter and leave the Sea of Japan from Tumen River, China's territory along the sea of Japan has all been lost.