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Military Trains In Conflict and War

The United States has officially declared war 11 times during five separate military conflicts. According to the Constitution (Article I, Section 8), Congress has the exclusive power to declare war. The last time America declared war was during World War II. Unofficially, the United States has been involved in nearly 400 military conflicts  between 1776 and 2023 of various types, called interventions or police actions to bypass the Constitutional requirement. Article - Nearly 400 military Conflicts.

Chinese Boxer rebellion (Date?)

The Mexican-American War of 1846 to 1848 marked the first U.S. armed conflict chiefly fought on foreign soil. It pitted a politically divided and militarily unprepared Mexico against the expansionist-minded administration of U.S. President James K. Polk, who believed the United States had a “Manifest Destiny” to spread across the continent to the Pacific Ocean. A border skirmish along the Rio Grande that started off the fighting was followed by a series of U.S. victories. When the dust cleared, Mexico had lost about one-third of its territory, including nearly all of present-day California, Utah, Nevada, Arizona and New Mexico.




American Civil War (1861–1865)

The Civil War in the United States began in 1861, after decades of simmering tensions between northern and southern states over slavery, states’ rights and westward expansion. The election of Abraham Lincoln in 1860 caused seven southern states to secede and form the Confederate States of America; four more states soon joined them. The War Between the States, as the Civil War was also known, ended in Confederate surrender in 1865. The conflict was the costliest and deadliest war ever fought on American soil, with some 620,000 of 2.4 million soldiers killed, millions more injured and much of the South left in ruin.