https://history.state.gov/milestones/1801-1829/monroe Jan 20, 2026 "In his December 2, 1823, address to Congress, President James Monroe articulated United States’ policy on the new political order developing in the rest of the Americas and the role of Europe in the Western Hemisphere.... President James Monroe: The statement, known as the Monroe Doctrine, was little noted by the Great Powers of Europe, but eventually became a longstanding tenet of U.S. foreign policy. Monroe and his Secretary of State John Quincy Adams drew upon a foundation of American diplomatic ideals such as disentanglement from European affairs and defense of neutral rights as expressed in Washington’s Farewell Address and Madison’s stated rationale for waging the War of 1812." United States Department of State
https://www.nps.gov/articles/000/general-grant-and-the-fight-to-remove-emperor-maximilian-from-mexico.htm Jan 14, 2021 "President Abraham Lincoln’s administration refused to recognize Maximilian and French meddling in Mexican affairs. Lincoln believed this move was a violation of the Monroe Doctrine, which warned European nations that the United States would not tolerate further meddling in Western Hemisphere countries. Conversely, the Confederacy welcomed Maximilian’s government as a possible ally in securing French recognition of the Confederacy. Although Maximilian’s presence in Mexico was unacceptable, President Lincoln had to walk a tight rope in his dealings with France." National Park Service
https://www.youtube.com/watch?v=JG9isLsvMvU Jan 16, 2026 When the Trump administration talks about controlling the Western Hemisphere, they’re calling back to a 19th-century policy. Here’s what it is, and why it’s put world leaders on edge. CBC News
https://www.youtube.com/watch?v=3e-VnbRfvt8 Jan 11, 2026 In 1823, President James Monroe called for European powers to stay out of the Americas. What came to be known as the Monroe Doctrine would influence U.S. foreign policy for generations, and lead to military interventions across the Western Hemisphere. This past week President Donald Trump repeatedly invoked the Doctrine when discussing last week's incursion into Venezuela. Mo Rocca talks with historian Jay Sexton, author of "The Monroe Doctrine: Empire and Nation in Nineteenth-Century America," about how Monroe's words – and how presidents have interpreted them – have affected world history. CBS Sunday Morning