• yadu-sṛñjaya-kāmboja — the Yadus, Sṛñjayas and Kāmbojas
  Triple compound listing three clans. The Yadus are Kṛṣṇa's own. Their presence inside Yudhiṣṭhira's army is sambandha made visible.
• kuru-kekaya-kośalāḥ — the Kurus, Kekayas and Kośalas
  Three more clans. Kuru includes both Pāṇḍava and Kaurava lines — the kṣatra that will fight itself at Kurukṣetra is here united in procession.
• kampayantaḥ-bhuvam — making the earth tremble
  Causative participle + accusative. The earth's tremor anticipates Bhū-devī's later petition for relief. Gauḍīyas read this physical detail as theological foreshadowing.
• yajamāna — the performer of the sacrifice
  From √yaj. Yudhiṣṭhira's primary identity in this chapter is not 'emperor' but 'sacrificer' — one who offers, including offering his own emperorhood.

• Which group, normally separated from mine, might be drawn together by Kṛṣṇa at the center?
• Where could devotion bridge what politics divides?

When earth trembles under massed armies, ordinarily it is fear. Here it is celebration — the same force that will, in a few years, break the same earth in Mahābhārata war. Kṛṣṇa is using the festival to gather what He will later thin.