Japan had limited contact with the outside world in the 19th century. it had only one port open for foreign trade. it did not allow foreigners into japan nor did it allow its citizens to travel overseas. in 1854, the us forced japan to sign a treaty, which opened the country to trade. by the 1870s, japan was industrializing, building steamships, and constructing a railroad system. as the 19th century ended, japan had changed from a closed, isolationist country to become a world power. its attempts to westernize while holding on to and strengthening japanese traditions resulted in a new national identity centered on military strength. which of these best describes the result of japan's economic and military changes in the late 19th century? a. japan defeated china in taiwan but was defeated by russia for control of manchuria. b. the japanese government signed a treaty with china to end us influence in asia. c. japan defeated china in a war for the control of taiwan and the korean peninsula. d. japan returned to isolationism after it was defeated by china in manchuria.