How did China become a victim of European imperialism?
The isolation of China led to them falling behind the industrialized war. They then became engaged in numerous wars, including the three opium wars, as well as the Sino-Japanese war. As they were also behind in military technology and modern warfare, they were defeated and were forced to give concessions to the imperialists. Unequal treaties forced them to open ports, and grant territorial concessions. China's land was exploited for its natural resources, and the Europeans gained the right to build a railway transportation system within China.