The Battle of Halys (also known as the Battle of Halys River) took place in 82 B.C. during the Second Mithridatic War. Roman general Lucius Licinius Murena became very overconfident while campaigning against Pontus and ignored orders to cease operations there. He commanded 2 legions. Murena launched two raids into Pontic territory. After receiving orders from the Senate not to continue the war, Murena launched a third raid, beginning the Second Mithridatic War.