The San Jiao Fort cafe on Kinmen Island may well be the best place in Taiwan to watch for the threat of invasion by China. Boasting a direct view of the Chinese city of Xiamen just 10 kilometers away, it is built atop an old military bunker, festooned with camouflage netting, and serves hot and cold beverages.

With Chinese warships now lingering off Taiwan’s coast and missiles falling into its seas, the divided loyalties of the cafe’s two proprietors say much about a generational shift in Taiwan that has transformed the island democracy’s relationship with China.

If China tried to take Taiwan by force, Chiang Chung-chieh, 32, would fight, even if the chances of winning are slim. Ting I-hsiu, 52, said he "would surrender.”