Note: Area and population data are based on Ministry of the Interior statistics (as of September 2023). Population consists only of civilians.
(Source) Created by the author.
Penghu Island is located in the middle of the southern opening of the Taiwan Strait, slightly closer to the Taiwan side. Capturing this island and gaining use of its naval and air bases will make domination of the Taiwan Strait significantly easier. Furthermore, the location of Penghu makes it a perfect site for launching attacks on Taiwan proper from north to south. However, due to the considerable civilian population, and the fact that invasion and occupation will result in numerous casualties, the PLA may face fierce criticism. Penghu is also close to the main island of Taiwan, so it will be somewhat troublesome for the PLA if reinforcement is sent quickly from the main island.
Kinmen Island and the islands of Beigan and Nangan in the Matsu Islands are very close to the China coast, so it will be very advantageous for the PLA to deploy its forces. However, Taiwan probably has defense forces there numbering several thousand, many civilians live on these islands, a robust military command has been established, and there should be a certain stockpile of weapons, ammunitions, fuel, food, and other supplies. Therefore, the PLA will need to be prepared for a certain extent of damages. Furthermore, even if Kinmen is taken after strenuous efforts, the military significance of occupying this island will be less than seizing Penghu Island if the plan is to eventually capture Taiwan proper. International criticism of China may be more severe against the invasion of a large island with a substantial Taiwanese military presence than in the case of occupying Tungsha Island, especially if civilian casualties are involved in the invasion and occupation process. There is also risk that the U.S. forces may intervene in these battles.
It is possible that China may wage a cognitive warfare on the Kinmen and Matsu Islands inhabited by civilians in order to set the course for Taiwan reunification while avoiding U.S. military intervention and mitigating international criticism as much as possible.
Kinmen, Matsu Susceptible to Cognitive Warfare
These islands have all the requirements that make it easy for China to wage a cognitive warfare. First, the islanders' culture and disposition are close to that on the Chinese mainland. Kinmen and Matsu did not experience Japan's colonial rule, and historically, political rule has been sustained from the Qing Dynasty to the Republic of China. In some cases, the residents have relatives living in China. Second, they are closer to the Chinese mainland than to the main island of Taiwan, so it will be easy to foster a sense of identity as one livelihood zone. Kinmen already receives water supply from China through underwater pipelines. This situation is similar to the relationship between Hongkong and China or between the Crimean Peninsula and Russia.[5]
Guiding the islanders' thinking in a direction favorable to China will be part of this cognitive warfare. In February 2023, two submarine cables connecting the main island of Taiwan and the Matsu Islands were cut off within a week. As a result, Internet connection was disrupted on the Matsu Islands for over one month. While it is premature to conclude that what happened was the result of an intentional act on the Chinese side, it is conceivable that the PLA Strategic Support Force responsible for cyber warfare cut the submarine optic cables to assess possibilities for information manipulation and psychological operation by monitoring which websites the Matsu islanders tried to access to obtain information, what messages they sent out at that time, status of access to stock websites and financial institution sites, how unsettled the islanders became, and so forth.[6]
In October 2023, a Kuomintang member of the Legislative Yuan elected from Lienchiang County (former magistrate of Lienchiang) called for promoting the so-called “Four New Links,” i.e., building a bridge connecting Matsu and China as well as receiving supply of water, gas, and electricity from China, making a controversial remark in the legislature that, “It is not too much to call China motherland.”[7]
For now, concrete plans have not been spelled out for the “New Four Links,” but it is possible that progress may be made depending on the outcome of the presidential election in January 2024.
Conclusion
While Russia can hardly claim that its invasion of Ukraine starting in February 2022 has been successful, it is safe to say that its annexation and rule of the Crimean Peninsula before the war had been effective. Learning lessons from the military history of Russia's annexation of the Crimean Peninsula and its subsequent ruling methods, it is possible that China may wage a cognitive warfare on the government, legislature, and residents of Kinmen and Lienchiang Counties.
This cognitive warfare is meant to manipulate the Taiwan people's thinking, and it is the most effective way to achieve “winning without fighting.” If the local government, legislature, and residents of Kinmen and Matsu agree to reunification without fighting with China, it will be difficult for Japan and the U.S. to prevent this regardless of how strong resistance from Taiwan's central government may be. The success of this process will serve as a stepping stone for waging a cognitive warfare on Taiwan proper.
On the other hand, there is absolutely no guarantee that China will not actually use military force. While the economic sanctions imposed on Russia for invading Ukraine were thought to be “powerful,” Russia succeeded in devising loopholes with countries willing to cooperate, thus reducing the effectiveness of the sanctions substantially. It is reckoned that the invasion of uninhabited remote islands may lead only to low level sanctions, so the Xi Jinping regime may decide that such invasion is low risk. Therefore, it is necessary for Taiwan to fully build its military capability and augment its emergency stockpile. Exchange of views between Taiwan and Japan and the U.S. in peacetime and cooperation with the international community are also important. Taiwan's homegrown submarine Hai Kun serves as a good example to demonstrate to China cooperation from Japan, the U.S., South Korea, and Europe.[8]
It is necessary for Taiwan, Japan, the U.S., Australia, and the European countries to monitor even more closely and analyze China's efforts toward a PLA armed invasion of remote islands and the waging of a cognitive warfare on Taiwan by the PLA and other Chinese organizations.
Note: This article is a substantially revised and updated version of “China's Operations to Capture Remote Islands Increasingly Becoming a Possibility,” CISTEC Journal, No. 194, July 2021. [in Japanese]