Respuesta :

France. It was colonized by France.

Answer;

France

In the 1800s, Vietnam was colonized by the European country of France

Explanation;

-The European country of France colonized Vietnam in the mid 1800s. In 1885, the country planned to take over Vietnam and in the year 1887 they did exactly that.  

-Consequently, they started integrating more Western ideals, education, and religion including, for the first time, introducing Christianity in Vietnam.

- France continued to rule Vietnam as a colony until their defeat in the First Indochina War and the proclamation of Vietnam's independence in 1954.