Term: Mexican–American War, Description: Armed conflict between the United States of America and Mexico from 1846 to 1848, Question: Did Theodore Roosevelt initiate the Mexican–American War?, Answer:No
Fact1: Theodore Roosevelt Jr. served as the 26th president of the United States from 1901 to 1909. Fact2: The Mexican–American War was from 1846 to 1848. Fact3: James Knox Polk was president from 1845 to 1849. Fact4:  Polk used  U.S. troops' presence to provocative Mexico into a war. 