Kublai dispatched an army under Abaqa to attack the Golden Horde, while Ariqboke sent Nogai to invade the Ilkhanate; both sides suffered disastrous defeats. Hulagu marched northwards through the pass of Derbend against Berke.
Kublai's forces, led by Abaqa, attacked the Golden Horde, while Ariqboke dispatched Nogai to attack the Ilkhanate. Both campaigns resulted in devastating losses for their respective sides. Hulagu marched northwards through the Derbend Pass and confronted Berke.