The major purpose of the monroe doctrine (1823) was to

Monroe's 1823 message to Congress had the Monroe Doctrine. It warned European powers not to come between the affairs of the Western Hemisphere. The U.S. has always taken an interest in its neighbors – the nations of the Western Hemisphere.

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

answer; ( suicide );