Third Mithridatic War
The Second Mithridatic War began when Rome tried to annex a province that Mithridates claimed as his own. In the Third Mithridatic War, first Lucius Licinius Lucullus and then Pompey the Great were sent against Mithridates and his Armenian ally Tigranes the Great. Mithridates was finally defeated by Pompey in the night-time Battle of the Lycus.