Some american expansionists challenged the #1              with the slogan “54 degrees 40 minutes or fight! ” they were ready to go to war for the #2  territory. however, us president james polk settled the dispute with a compromise and agreed to draw the border at the 49th parallel. box # 1 british, american indians, or mexicans    box  #2 californian, oregon, or texan   

Some American expansionists challenged the 1. British with the slogan “54 degrees 40 minutes or fight!” They were ready to go to war for the 2. Oregon Territory. However, US President James Polk settled the dispute with a compromise and agreed to draw the border at the 49th parallel.

Explanation:

American expansionists were those who believed that the United States has the right and duty to extend its rule and liberties across the North American continent, including the Oregon Territory which had been occupied by both British and Americans since 1818.

In the early 1840s, some American expansionists alone with the US President James Polk (with the same expansionist sentiment) pressured the British to turn over all of Oregon with the slogan “54 degrees 40 minutes or fight!”

However, after much tension and negotiations, US President James Polk achieved to settle the dispute with a compromise that established the border between British North America and the United States along the 49th parallel until the Strait of Georgia. This international border was specified in the 1846 Oregon Treaty.