Which of the following statements is FALSE? a.
The U. S. declared war on Mexico on May 13, 1846.
b.
Mexico declared a defensive war against the U. S. on April 23, 1846.
c.
Both U. S. and Mexican forces sent troops to the region between the Rio Grande and the Nueces River.
d.
Negotiations by Louisiana Senator John Slidell put a temporary halt to U. S.-Mexican tensions and hostilities.

D. Negotiations by Louisiana Senator John Slidell put a temporary halt to U.S.-Mexican tensions and hostilities.

Explanation:

It cannot be A because on May 13, 1846 the United States passed an act providing or the Prosecution of the existing war between the United States and Mexico.

It cannot be B because Mexico declared a defensive war against the U.S. on April 23, 1846. Mexico would defend territories, but would not take the offensive.

It cannot be C because "on April 25, 1846, a 2,000-strong Mexican cavalry detachment attacked  70-man U.S. patrol that had been sent into the contested territory north of the Rio Grande and south of the Nueces River." (Wikipedia: Nueces Strip)

It must be D because the rest are true.

it's d just trust me I took the quiz and got this question correct.

Explanation: