How was US able to remain isolated from European affairs during the 19th century?

The United States maintained a policy of isolationism during the 19th century largely due to its geographical distance from Europe and a focus on domestic growth and westward expansion. The Monroe Doctrine of 1823 underscored this stance, asserting that European powers should not interfere in the Western Hemisphere, which helped to deter European involvement in Latin America. Additionally, the U.S. was preoccupied with its own internal issues, such as the Civil War and territorial expansion, which limited its engagement in European conflicts. As a result, America prioritized its own development over entanglement in European affairs.