Which of the following showed the impact of nationalism on foreign policy? A).Adams-Onís Treaty
B).Missouri Compromise
C).American System
D).Marbury v. Madison

A). Adams-Onis Treaty

Explanation:

The Adams-Onís Treaty of February 12, 1819, also known as the "Transcontinental Treaty," which settled border disputes between the United States and the Spanish Empire, proved vital to the nation's security. The most significant element of the treaty was Adams's insistence that the boundary is extended to the Pacific.