How are the three island chains divided What are the three island chains?

The first island chain: The first island chain refers to the Huacai archipelago, from the Japanese archipelago and the Ryukyu Islands in the northeast, Taiwan Island in the middle, the Philippine Islands and the Greater Sunda Islands in the south, Vietnam, Myanmar, India, Pakistan, Afghanistan and other Central Asian and South Asian countries close to China's national border in the west, and eastern Kazakhstan, southern Russia, southern Mongolia, South Korea and other countries in the northwest and north, and the Japanese archipelago in the northwest.

The second island chain: The second island chain refers to the Japanese archipelago in the north, the Ogasawara Islands, the Iwo Jima Islands, the Volcanic Islands, the Mariana Islands, the Yap Islands, the Palau Islands, the Halmahera Islands in the middle, the Strait of Malacca, the Bay of Bengal, the central and southern parts of India, the central part of Pakistan, the central and western parts of Afghanistan, the central and western parts of Kazakhstan, the eastern part of Russia and other countries, to the Japanese archipelago.

The third island chain: The third island chain is mainly composed of the Hawaiian archipelago base group, from the Aleutian Islands in the north, the Hawaiian Islands and Oceania in the middle, the southern Bay of Bengal in the west, the central and northern Arabian Sea, the Persian Gulf through Saudi Arabia, Iran and other places into the Caspian Sea, and Russia and other countries in the north to the Aleutian Islands. Only the part of the island chain from the Aleutian Islands to the Oceania Islands was formed, and the onshore island chain was basically not formed.

The first island chain refers to the chain of islands from the Japanese archipelago and the Ryukyu Islands in the north, Taiwan Island in the middle, and the Philippines and the Greater Sunda Islands (the main part of the Malay Archipelago) in the south. Among the "blockade chains" of the first island chain, the most critical is the island of Taiwan.

It is located in the middle of the first island chain and has a very special strategic position, and by mastering the island of Taiwan, it can effectively choke the strategic choke point between the East China Sea and the South China Sea. There are also favorable shipping lanes with the waters within the "second island chain" and a convenient route to the open ocean.

The second island chain refers to the Japanese archipelago in the north, passing through the Ogasawara Islands, the volcanic islands, the Mariana Islands, the Yap Islands (southeast of the Philippines), and the Palau Islands (southeast of the Philippines) to the Halmahera Islands (the main island of Moluccas, Indonesia).

Third island chain: refers to the Hawaiian Islands.

The first island chain refers to a chain of islands from the Japanese archipelago and the Ryukyu Islands in the north, Taiwan Island in the middle, and the Philippines and the Greater Sunda Islands in the south.

Among the "blockade chains" of the first island chain, the most critical is the island of Taiwan.

The second island chain refers to the Japanese archipelago in the north, through the Ogasawara Islands, the volcanic islands, the Mariana Islands, the Yap Islands, and the Palau Islands, and extends to the Halmahera Islands.

The third island chain refers to the vast range of islands from Hawaii to the South Pacific Ocean.

Extended information: The "third island chain" is relative to the "first island chain" and "second island chain", and it is generally believed that it is a line of defense centered on Hawaii in the United States, from the Aleutian Islands in the north to some islands in Oceania in the south.

The official use of the term "island chain" is the product of international political struggles. In the forties and fifties of the last century, many socialist countries, such as China, Vietnam, Korea, and Mongolia, appeared in the eastern Pacific Ocean of the Asian continent.

To this end, the Western military alliance led by the United States has made every effort to take advantage of this.

1. The second island chain constructs a so-called "crescent-shaped encirclement" of socialist countries. During the Cold War, the United States, through various bilateral and multilateral military cooperation methods, successively established an East Asian military base group with Japan and South Korea as the core, a Southeast Asian military base group with the Philippines, Singapore and other Southeast Asian countries as the core, and a second island chain military base group with the United States as the core.

These military bases are organized in an orderly manner and can support each other, holding all the choke points from the Asian continent to the Pacific Ocean. The "island chain" has not only become an important bargaining chip for the United States to curb the development of Asian countries into the sea, but also an important support for the US military in the western Pacific region. Since then, many countries have vividly referred to this island arc encirclement situation as the "island chain", or simply the "island chain".

The so-called "island chain" has both geographical meaning and political and military content, and its purpose is to encircle the Asian continent and form a deterrent trend for all countries on the Asian continent.

The first island chain. It mainly refers to the arc-shaped island belt close to the outer side of the sea area of Chinese mainland, that is, the chain island belt from the Japanese archipelago and the Ryukyu Islands in the north, Taiwan Island in the middle, and the Philippines and the Greater Sunda Islands in the south, covering China's Yellow Sea, East China Sea and South China Sea or Qinghai Sea.

The second island chain mainly refers to the encompassing of Taiwan, China.

The arc-shaped island belt on the outer side of the eastern sea area stretches from Japan's Southern Islands (including Ogasawara Genmae Islands and Iwo Jimae Islands) in the north to the Mariana Islands (including the United States**) in the middle and the Caroline Islands in the south. The islands in these two island belts echo each other and are interlocked, becoming a natural barrier to control the sea and the mainland within the island chain. The third chain islands are not yet clear.

This triple island chain is a military operation by the United States to contain China.