Me or my army?

Krishna, however, has long been a presence more mysterious and powerful than any role he has assumed. His decision to accept a subordinate place for the battle, as Arjuna's suta is the result of wager in which Yudhishthira the Pandava and Duryodhana the Kaurava were offered either Krishna as non-combatant or the force of all of his armies. When Yudhishthira chooses Krishna for his counsel, friendship, and companionship over the mighty armies he might have chosen in alliance, Duryodhana believes he has received yet another boon from the choice of a foolish idealist who places false hope before realpolitik. But there is never anything false about hope and with Krishna, who then chooses to be Arjuna's charioteer, the Pandavas know they cannot lose: by having chosen from the heart than from the mere exigency of practical reality, they have chosen the divine. –

Douglas Renfrew Brooks in Poised for grace: annotations on the Bhagavad Gita from a Tantric view