Castellammarese War happened in 1930.
There definetly was, some of the biggest events that shaped the mafia as we no it happened during the depression(The castellammarese war, Lucky Luciano's ascension and creation of the commission of the five families). The mafia were becoming very rich during the depression.
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.
Contestado War happened in 1912.
Aroostook War happened in 1838.