yadu-sṛñjaya-kāmboja — the Yadus, Sṛñjayas and Kāmbojas; kuru-kekaya-kośalāḥ — the Kurus, Kekayas and Kośalas; kampayantaḥ — making tremble; bhuvam — the earth; sainyaiḥ — with their armies; yajamāna — the performer of the sacrifice (Mahārāja Yudhiṣṭhira); puraḥ-sarāḥ — placing in their front.