Question

What can you conclude about President Polk by the fact that the United States declared war on Mexico? A. He did not understand war. B. He wanted to avoid war. C. He was not afraid of war. D. He thought that war was unnecessary.

Answer 1

The correct answer should be option A - He did not understand war.

President James K. Polk declared war on Mexico on May 13, 1846. Polk wanted was to push Mexico into negotiating with the United States in a dispute over Texas, and he was willing to create a threat of war to do this. If he had to fight, he wanted a short war and a quick victory. He never expected a long-drawn-out war.

The Army was not ready for war and had never fought so far from home before. The country was divided. So Polk was taking a considerable risk in his bold stand toward Mexico.

Answer 2

well the answer of your question is "he did not understand the war
 which means option A is correct.
The president James K. Polk was expecting to force the Mexico in order to force them for negotiation. The purpose was to create a short war in order to get the quick research.  but that was the risk .The  result of the war was a year and 9 month long war which also cause the many american lives losses It is estimated that there was about 13000 casualties.