If a country voluntarily merges into another country, is it acceptable or permissible in the international community?

From the perspective of international law, it is certainly allowed.

However, in the real international politics, there are only eternal interests between countries. It is unacceptable and permissible for a country to voluntarily merge into another country as long as it harms the interests of big countries! Once East Germany is merged into West Germany, it will be difficult to realize the reunification of the two countries without bringing great benefits to the former Soviet Union. It is even more difficult for East Germany, which belongs to a family, to voluntarily merge into West Germany, not to mention other countries.

As long as the interests of other countries, especially big countries, are not involved, the international community will certainly allow one country to voluntarily merge into another.

Nauru, for example, is an island country in the Pacific Ocean, with a land area of only 2 1 square kilometer, a population of only 1 0.3 million, and a total GDP of only1more than one billion dollars. Nauru made a fortune in its early years because of its rich phosphate resources. Later, with the depletion of phosphate mining, the country quickly recovered to its original state. If a country like Nauru voluntarily joins Australia or New Zealand, why should the international community object? I'm afraid the news fever will not exceed 10 days!

Nauru

If it affects the interests of other countries, especially big countries, the international community will not allow it. You know, today's world is a super-powerful situation, that is, the United States is the only superpower, followed by China, Russian, European Union, Japanese, Indian and other world powers. If a country actively merges into another country and affects the interests of these world powers, how can it be allowed? Don't say that even a country or a region is difficult to be allowed.

In 20 14, Crimea held a comprehensive referendum, and 96% people were willing to agree to join Russia. Even so, Russia has been subject to economic sanctions from the United States and the European Union. If it is not Russia but other countries, I am afraid that the United States will use force.

Moreover, the so-called voluntary participation of other countries is very tricky.

India has been pursuing regional hegemony in South Asia. It used to be at 1975. A referendum? In the name of annexing Sikkim. India also wants to annex Nepal, Bhutan and Sri Lanka, but why has it never been successful? The international community can't agree? Sikkim is only 7,096 square kilometers with a population of more than 600,000, which is not worth mentioning. If Nepal, Bhutan and Sri Lanka were all annexed by India, wouldn't the whole world be in a mess?

Conclusion; Essentially, international politics is still the law of the jungle! Our first task is to develop, develop and develop again, so that we can stand at the top!