In the same year, the nomadic Hungarians - who had arrived in the Lower Danube region from the steppes of Eastern Europe in 837 or 838 - became involved in a conflict between Bulgaria and the Byzantine Empire on the latter's behalf. The Bulgarians incited another nomadic tribe, the Pechenegs, to invade the Hungarians from the east, while the Bulgarians also attacked them from the south. The two synchronized attacks forced the Hungarians to cross the Carpathian Mountains in search for a new homeland.