Which doctrine warned European powers not to interfere in the Western Hemisphere and established a US security stance?

Which doctrine warned European powers not to interfere in the Western Hemisphere and established a US security stance?

• A. Napoleonic Code
• B. Monroe Doctrine
• C. Liberalism
• D. Conservatism

Answer: (B)

The Monroe Doctrine warned European powers not to interfere in the Western Hemisphere and established a U.S. security stance in the Americas. Introduced in 1823, it asserted that the Western Hemisphere was not open to new colonization and that the United States would view any European meddling in independent nations as a threat to its peace and safety. This set the tone for U.S. hemispheric leadership and laid the groundwork for a long-running policy of guarding the Americas from European influence. Other options don’t fit because they refer to unrelated concepts: the Napoleonic Code is French civil law, while Liberalism and Conservatism are broad political ideologies.

The Monroe Doctrine warned European powers not to interfere in the Western Hemisphere and established a U.S. security stance in the Americas. Introduced in 1823, it asserted that the Western Hemisphere was not open to new colonization and that the United States would view any European meddling in independent nations as a threat to its peace and safety. This set the tone for U.S. hemispheric leadership and laid the groundwork for a long-running policy of guarding the Americas from European influence. Other options don’t fit because they refer to unrelated concepts: the Napoleonic Code is French civil law, while Liberalism and Conservatism are broad political ideologies.