Answer/Explanation:
The quote you provided is from President James K. Polk's inaugural address in 1845. In this context, Polk is referring to the Republic of Texas, which had recently been annexed by the United States. When he mentions "foreign nations," he is likely alluding to Mexico, which had previously claimed Texas as part of its territory. Polk's statement asserts the United States' position that Texas is now part of the Union and that other countries, such as Mexico, have no right to interfere with its status or seek to reclaim it.
