<answer>Roman</answer> entanglement in the Balkans began when Illyrian piratical raids on <answer>Roman</answer> merchants led to invasions of Illyria (the First and, Second Illyrian Wars). Tension between Macedon and Rome increased when the young king of Macedon, Philip V harbored one of the chief pirates, Demetrius of Pharos (a former client of Rome). As a result, in an attempt to reduce <answer>Roman</answer> influence in the Balkans, Philip allied himself with Carthage after Hannibal had dealt the <answer>Roman</answer>s a massive defeat at the Battle of Cannae (216 BC) during the Second Punic War. Forcing the <answer>Roman</answer>s to fight on another front when they were at a nadir of manpower gained Philip the lasting enmity of the <answer>Roman</answer>s; the only real result from the somewhat insubstantial First Macedonian War (215–202 BC).
Illyrian pirates caused two wars in the Balkans with what Empire?
Roman