With Fire and Sword by Henryk Sienkiewicz — Read

Next morning early the Cossacks marched out of the Saitch, foot and horse. Though blood had not yet stained the steppes, the war had begun. Regiment followed regiment; just as if locusts, warmed by the spring sun, had swarmed in the reeds of Chertomelik, and were flying to the fields of the Ukraine. In the woods behind Bazaluk the warriors of the horde were waiting, ready for the march. Six thousand chosen men, armed incomparably better than ordinary partisan robbers, composed the contingent which the Khan sent to the Zaporojians and to Hmelnitski. At the sight of them the Cossacks hurled their caps into the air. The guns and muskets rattled. The shouts of the Cossacks, mingling with the "Allah" of the Tartars, struck the dome of heaven. Hmelnitski and Tugai Bey, both under their banners, galloped toward each other on horseback, and exchanged formal greetings.

The order of march was formed with the rapidity peculiar to Tartars and Cossacks; then the troops moved on. The horde occupied both Cossack wings; the centre was formed by Hmelnitski and his cavalry, behind which marched the terrible Zaporojian infantry. Farther in the rear were the gunners, with their cannon; still farther the tabor-wagons, in them camp-servants and stores of provisions; finally, the herdsmen, with reserve herds and cattle.