As of August 2014, there is not another Civil war about to happen in the US.
World War 2
McGowan's War happened in 1858.
the war happen in 1955 to 1975
the creek war happened in 1865
Lamian War happened in -323.
Anastasian War happened in 502.
Cretan War happened in -205.
Caucasian War happened in 1817.
Castellammarese War happened in 1930.
Contestado War happened in 1912.
Aroostook War happened in 1838.