The American Civil War (1861–1865), also known as the War Between the States as well as several other names, was a civil war in the United States of America. Eleven Southern slave states declared their secession from the United States and formed the Confederate States of America or CSA (the Confederacy). Led by Jefferson Davis, they fought against the United States (the Union), which was supported by all the free states and the five border slave states.
南北战争，又称美国内战（American Civil War），是美国历史上一场大规模的内战，参战双方为美利坚合众国（简称联邦）和美利坚联盟国（简称邦联）。这场战争的起因为美国南部十一州以亚伯拉罕·林肯于1861年就任总统为由而陆续退出联邦，另成立以杰斐逊·戴维斯为“总统”的政府，并驱逐驻扎南方的联邦军，而林肯下令攻打“叛乱”州。此战不但改变当日美国的政经情势，导致奴隶制度在美国南方被最终废除，也对日后美国的民间社会产生巨大的影响。
