Final answer:
John Quincy Adams influenced U.S. foreign policy by refusing to make deals with European colonial powers and speaking out in defense of the Monroe Doctrine.
Step-by-step explanation:
John Quincy Adams influenced U.S. foreign policy by refusing to make deals with European colonial powers. He believed in the importance of asserting American independence and avoiding entanglement in European affairs. Adams also spoke out in defense of the Monroe Doctrine, which declared that European powers should not interfere in the affairs of the independent nations of the Americas.
Learn more about John Quincy Adams' influence on U.S. foreign policy