In 1867, an American merchant ship, the Rover, sank off the coast of southern Taiwan. Fourteen sailors reached the shore, where almost all were killed by indigenous people. In retaliation, the United States launched two disastrous military operations against local tribes. Eventually, the U.S. consul to Amoy, Charles Le Gendre, negotiated a treaty with Tauketok, the chief of the eighteen tribes of the area, that secured safe passage for shipwrecked...