From the start of American involvement in World War II, Roosevelt took the lead in establishing a grand alliance among all countries fighting the Axis powers. He met with Churchill in a number of wartime conferences at which differences were settled amicably.
Sorry, I cant I don't speak that language.
Manifest Destiny is the belief that Americans were destined to expand across North America from coast to coast.
The Emancipation Proclamation is an executive order by Abraham Lincoln freeing the slaves.
The Monroe Doctrine was a United States policy of opposing European colonialism into the Americas.
Lastly, The Louisiana Purchase was the purchase of the Louisiana territory by the US from France.
Manifest Destiny is the best answer.
