_________ felt insulted and rejected the offer. As a result, diplomatic relations broke down. In March 1846, Polk ordered General Zachary Taylor to move his troops across the _____________ river to the____________. This led to war

President James K. Polk felt insulted and rejected the offer. As a result, diplomatic relations broke down. In March 1846, Polk ordered General Zachary Taylor to move his troops across the Rio Grande river to the frontier with Mexico. This led to war.