posted by me .
Which "act of Mexico herself," referred to by President Polk in this passage, was the cause of
war between the United States and Mexico?
Mexico’s refusal to discuss the U.S. offer to buy California and New Mexico
Mexico’s massacre of the Alamo defenders
Mexican soldiers’ attack on General Zachary Taylor’s forces in a disputed border area
Mexico’s refusal to honor the U.S. annexation of Texas
And your answer is? We'll be glad to check it.