Caused by colonial resentment of British taxes and strict, impractical rules and regulations, it eventually led to the development of the United States as an independent nation. The American Civil War was fought from 1861 to 1865 a war between the Union and the Confederate States of America, primarily over the practice of slavery. To date, the Civil War remains the deadliest conflict in U.S. history. In the revolutionary war The colonies rejected British taxes and other limitations on trade, while also rejecting the need to house British soldiers and other duties considered unfair. In the civil war Slave states rejected the abolitionist movement under the notion that slavery was a “state right." Shortly after they seceded, the war to preserve the Union began. Both wars are about freedom, the revolutionary war is about freedom for the 13 colonies from britain, the civil war is about freedom for …show more content…
When France’s expansion into the Ohio River valley brought repeated conflict with the claims of the British colonies, a series of battles led to the official British declaration of war in 1756. At the peace conference in 1763, the British received Canada from France and Florida from Spain, but permitted France to keep its West Indian sugar islands and gave Louisiana to Spain. The treaty strengthened the American colonies significantly by removing their European rivals to the north and south and opening the Mississippi Valley to westward expansion.The Mexican-American War (1846-1848) marked the first U.S. armed conflict 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 started off the fighting and 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. Causes of the Mexican-American War Texas gained its independence from Mexico in 1836. Initially, the United States declined to incorporate it into the union, largely