1) ""Care has been taken - that all our military and naval movements shall be strictly defensive. - We will not be the aggressor upon Mexico; - but if her army shall cross the [Rio Grande] del Norte and invade Texas, we will if we can drive her army to her own territory. Less than this , in good faith to Texas, I think the government could not have done. We invite Texas to unite her destinies to ours. She has accepted the invitation, upon the terms proposed . . . . and if because she has done so, she is invaded by the Mexican army, surely we are bound to give her aid in her own defense." Source: Letter from President James K. Polk to Senator William H. Haywood (August 1845).
- To protect Texas should Mexico invade.
- He would have supported this action.
- A Mexican citizen would have disapproved of this action.
2) " "At the time Mr. Slidell presented himself, the troops of the United States occupied our territory, their squadrons threatened our ports, and they prepared to occupy the peninsula of the Californias, of which the question of the Oregon with England is only a preliminary. Mr. Slidell was not received, because the dignity of the nation repelled this new insult. Meanwhile, the army of the United States encamped at Corpus Christi, and occupied the Isla del Padre; following this, they then moved to the point Santo Isabel, and their standard of the stars and stripes waved on the right bank of the Rio Bravo del Norte, opposite the city of Matamoros, blockading that river with their vessels of war. The village of Laredo was surprised by a part of their troops, and a small party of our men, reconnoitering there, were disarmed. Hostilities, then, have been commenced, by the United States of North America, beginning new conquests upon the frontier territories of the departments of Tamaulipas and New Leon, and progressing at such a rate that troops of the same United States threaten Monterey in Upper California. No one can doubt which of the two republics is responsible for this war: a war which any sense of equity and justice, and respect for the rights and laws of civilized nations, might have avoided...." Source: Proclamation of President Don Mariano Paredes y Arrillaga (April 23, 1846)"
- Hostilities have commenced.
- The American would have blamed the Mexicans.
- The Mexicans would have blamed the Americans.