Standing on the shore of Taiwan's Kinmen island, Taiwanese tourists snap photos of the skyline of China's Xiamen city that is clearly visible across the sliver of water separating them.

For the best view of Xiamen's skyscrapers, visitors stand on a beach where anti-landing spikes jut out — a reminder of when the island was a battlefield front line after Chinese nationalists fled to Taiwan in 1949.

More than 70 years later, China's communist leaders still vow to seize democratic Taiwan, which Beijing views as part of its territory.