Mahabharata Udyoga Parva Chapter 199:2

Mahabharata Udyoga Parva (Uluka Dutagamana Parva) Chapter 199:2 And foot-soldiers in thousands, that were all brave and armed with bows, swords, and maces, marched behind them, as thousands marched before them. And in that part of that sea of troops, where Yudhishthira himself was, there were stationed numerous lords of earth. And there also were thousands of elephants, and steeds by ten thousands, and cars and foot-soldiers also by thousands. And there also marched, O bull among kings, Chekitana with his own large force, and king Dhrishtaketu, the leader of the Chedis. And there also was that mighty bowman, Satyaki, the foremost car-warrior of the Vrishnis, that mighty combatant, surrounded by hundreds and thousands of cars and leading (them to battle)! And those bulls among men, Kshatrahan and Kshatradeva, mounted on their cars, marched behind, protecting the rear. And there (in the rear) were the waggons, stalls, uniforms, vehicles and draft animals. There also were thousands of elephants and horses by tens of thousands. And taking all the invalids and women, and all that were emaciated and weak, and all the animals carrying his treasures, and all his granaries, with the aid of his elephant-divisions, Yudhishthira marched slowly. And he was followed by Sauchitti, who steadily adhered to truth and was invincible in battle, and Srenimat, and Vasudeva and Vibhu, the son of the ruler of Kasi, with twenty thousand cars, and hundred million steeds of high mettle, each bearing scores of bells on its limbs, and twenty thousand smiting elephants with tusks as long as plough-shares, all of good breed and divided temples and all resembling moving masses of clouds. Indeed, these usually walked behind those monarchs. Besides these, O Bharata, the elephants that Yudhishthira had in his seven Akshauhinis, numbering seventy thousand with humour trickling down their trunks and from their mouths, and resembling (on that account) showering clouds, also followed the king, like moving hills. Thus was arrayed that terrible force of the intelligent son of Kunti. And relying upon that force he battled with Suyodhana, the son of Dhritarashtra. Besides those already named, other men by hundreds and thousands and tens of thousands, in divisions numbering by thousands, followed (the Pandava army), roaring loudly. And the warriors by thousands and ten thousands, filled with joy, beat their drums by thousands and blew conchs by tens of thousands!" The End of Udyoga Parva