American CivilWar, a military conflict between the United States of America (the Union) and the Confederate States of America (the Confederacy) from 1861 to 1865.
The American CivilWar is sometimes called the War Between the States, the War of Rebellion, or the War for Southern Independence.
The election of Abraham Lincoln as president was viewed by the South as a threat to slavery and ignited the war.
A civilwar is a war in which parties within the same culture, society or nationality fight for political power or control of an area.
Religion is more contentious, there are some civilwars that can be seen as fueled by religion in early years, such as the Jewish Revolts against Rome, but these can also be seen as revolts by a servile people against their oppressors or uprisings by local notables in an attempt to gain independence.
Civilwars fought over religion have tended to occur more frequently in monotheisticsocieties than in polytheisticsocieties; this has been explained as being due to the fact that the latter tend to be more "flexible" in terms of dogma, to allow for some latitude in belief.