Matsu

Matsu Islands Like the Kinmens, the Matsu Islands are part of Fukien Province. A political affairs commission is the administrative organ, supported by the Lienkiang Hsien Government. They form the northern anchor of the offshore defense line and seal the mouth of the Min River.

Source: wiktionary

The nineteen rocky, treeless Matsus, covering twelve square miles, blocked the port of Foochow on the Chinese mainland, just ten miles away, while the Quemoys, covering sixty square miles of land which supported several thousand farmers and fishermen, blocked the port of Amoy, only two miles away.

Source: wiktionary

The Chinese Communist shelling of Matsu on May 16, which clearly seems to have been a reaction to GRC artillery fire from Matsu covering a raiding party launched from Matsu against Lienchiang (FCT 8622), caused me to give consideration to repeating to the GRC the warning we gave them last spring that they should not assume the US would assist the GRC should the Chicoms attack the smaller offshore islands in retaliation for raids mounted by the GRC from such islands.

Source: wiktionary

'As best as we can figure without talking to President Lee,' Freeman said, 'Taiwan wanted to knock that carrier out of commission, then cripple Lang-Ch'i Army Base, which is the main staging point for China's invasion force for the Matsu Island chain.'

Source: wiktionary