Well the war in Iraq really has nothing to di with the American Civil War.
The war in Iraq is called this because the war is within Iraq, its not with any other country. Iraq is having civil wars. Iraq can not stabilize their government or economy.
Iraq War in Anbar Province happened on 2003-03-20.
These countries could include Syria, Libya, Iraq, Mali, Korea. This depends on your exact definition of civil war, including the scope and number of participants.
Civil war in Tajikistan happened in 1993.
Paraguayan Civil War happened in 1947.
Laotian Civil War happened in 1953.
Angolan Civil War happened in 1975.
Mozambican Civil War happened in 1977.
Liberators' civil war happened in -43.
Guatemalan Civil War happened in 1960.
Jementah Civil War happened in 1879.