In 1975, India, a major South Asian power, annexed the Sikkim Kingdom into its territory and turned it into a Sikkim state, and the Sikkim Kingdom disappeared from the map.

Sikkim , also known as Zhemengxiong, is located on the southern slope of the Himalayas, and is known as Nepal and Bhutan . In 1975, India, a major South Asian power, annexed the Sikkim Kingdom into its territory and turned it into a Sikkim state, and the Sikkim Kingdom disappeared from the map. So, why did India, which had millions of square kilometers of land and more than one billion people at that time, take the risk of being sanctioned by internationally and take the risk of being sanctioned by at all costs at all costs?

First of all, Sikkim has always been bullied. As early as 1861, Britain, which promoted colonial rule in Southeast Asia, forcibly sent troops to occupy Sikkim, imprisoning the King of Sikkim, and forcing the King to sign a treaty of the protected country with British official Eden. In this way, Sikkim's internal affairs, diplomacy and military were controlled by Britain. Although nominally independent, the Sikkim Kingdom has been incorporated into British colonial rule.

In 1947, India, also colonized, broke free from British control and declared independence. After getting rid of colonial rule, India began to plan its dream of becoming the overlord of the Indian Ocean in South Asia. Continuously expand its sphere of influence in South Asia and enhance its influence. Then, India focused on Sikkim and got rid of the colonial country.

They used the excuse of inheritance of the British colonies to force the Sikkim royal family, which had just been free, to sign the Agreement on Maintaining the Status Status, and take all the British colonial interests in Sikkim for themselves. In February 1975, the Indian army placed house arrest by the King of Sikkim, then manipulated the parliament, passed the resolution to become a state of India, and also set up a so-called referendum, which eventually became a state under India.

Secondly, India was independent in 1947. Before the British colonists withdrew, they proposed the Mountbatten plan to divide India and Pakistan into . The content is that western Bangladesh belongs to India, called Bangladesh; the eastern part belongs to Pakistan , called East Pakistan . The UK gave such a distribution plan, in fact, it was to place the six states in eastern India in the encirclement of Pakistan, and the link between the central and eastern six states was only connected by the Siliguri Corridor , which was located in the south and Sikkim Bhutan in the north, and the twenty-two kilometers long.

If the six eastern states are regarded as chicken heads, the Siliguri Corridor belongs to the throat of the whole chicken and has very important strategic significance. Its security directly determines the fate of India, which can be said to be India's weakest weakness. Moreover, the Siliguri Corridor is located on the plain, which is difficult to defend, and the terrain is the end, so it is very easy to be cut off. If a war begins, only a small number of troops need to control the middle of the corridor, and there will be a battle effect of being a one-man who can pass by ten thousand men.

. In order to eliminate Pakistan's siege, India and Pakistan have launched three Indian-Pakistan wars since their separation. Later, with the full support of India, East Pakistan separated from Pakistan and established an independent Bangladesh , and maintained friendly relations with India. Although the Siliguri Corridor still exists, it has disintegrated Pakistan's risk of siege of the six eastern states of India.

Finally, the threat from the north made India firmly determined to take Sikkim for its own. Although the alarm in the south of the Siliguri Corridor was lifted, there are still threats in the north. Especially in a wedge-shaped area between Sikkim and Bhutan, the straight-line distance between the Doklam area of ​​my country and the Siliguri Corridor is only fifty kilometers. During the Sino-Indian conflict in 1962, our troops detoured from this area, attacked from both sides of the flanks, defeating the Indian army and retreating.

So, for the wedge-shaped area between Sikkim and Bhutan, some Indian experts said that if our army was not carrying out self-defense counterattacks, it only took two hours to cut off the Siliguri Corridor and divide India into two. At that time, several countries such as , Assam , in the east will be in chaos without fighting.

So because of concerns about the Siliguri Corridor, after the outbreak of Sino-Indian conflict, India changed its previous colonial rule over Sikkim and decided to annex Sikkim at all costs, so as to turn it into an important strategic defensive fulcrum against our country.

There is a saying that goes: "A weak country has no diplomacy." Sikkim, which has been under colonial rule for hundreds of years, has not attracted international attention and support after being embezzled by India. This is also because in the mid-1970s, the United States and the Soviet Union were still in the Cold War period, and both wanted to win over India, the largest power in South Asia, so they turned a blind eye to India's behavior, and Sikkim also ushered in its tragic ending.