Final answer:
Historical texts imply that the USA aimed to expand its democratic culture across the continent under the belief of manifest destiny, and historically it has sought to maintain influence with foreign policies aimed at strengthening international relationships, while at times also acting as an international police power for the welfare of other nations.
Step-by-step explanation:
The NT, presumably referring to various historical texts, suggests that the USA wanted to implement its own perception of 'manifest destiny,' a concept rooted in the belief of an inevitable and divinely sanctioned expansion of American democratic institutions and culture across the continent. This expansionist ideology, which emerged in the 19th century, often led to the exposure and sometimes forced assimilation of native inhabitants to Protestant institutions and American ways of land development. Politicians and writers during that era proclaimed America's destiny to rule the continent.
Throughout history, the USA has also pursued foreign policies intended to maintain and extend its influence. An example is the foreign policy platform of former President Bill Clinton aimed at expanding the North Atlantic Treaty Organization (NATO) and strengthening international relationships. The USA engaged in various international affairs, notwithstanding its historical tendency to avoid 'entangling alliances' as per George Washington's advice and the isolationist stance of the Monroe Doctrine.
In summary, regardless of specific historical contexts, the USA has expressed desires to see stability, order, and prosperity in neighboring countries, sometimes positioning itself as an international police power in the Western Hemisphere, with the claim of doing so for the welfare of other nations.