evidence: The main island of Kinmen, along with a smaller "Little Kinmen", form the closest outpost of Taiwanese controlled territory to China, with just a few kilometres separating the two sides. [...] Local Kinmen resident Cai Tianding, a convenor of a military history enthusiast group, said his parents lived through a time when Kinmen was a hotly contested frontline. [...] Kinmen even opened trade links with China in the 2000s and has been strengthening its economic relations ever since.