Daily Reading: Bhagvad Gita As it is- Page-34

B.G.1.16-18

anantavijayaṁ rājā
kuntī-putro yudhiṣṭhiraḥ
nakulaḥ sahadevaś ca
sughoṣa-maṇipuṣpakau

kāśyaś ca parameṣv-āsaḥ
śikhaṇḍī ca mahā-rathaḥ
dhṛṣṭadyumno virāṭaś ca
sātyakiś cāparājitaḥ

drupado draupadeyāś ca
sarvaśaḥ pṛthivī-pate
saubhadraś ca mahā-bāhuḥ
śaṅkhān dadhmuḥ pṛthak pṛthak

Translation: 

King Yudhiṣṭhira, the son of Kuntī, blew his conchshell, the Ananta-vijaya, and Nakula and Sahadeva blew the Sughoṣa and Maṇipuṣpaka. That great archer the King of Kāśī, the great fighter Śikhaṇḍī, Dhṛṣṭadyumna, Virāṭa, the unconquerable Sātyaki, Drupada, the sons of Draupadī, and others, O King, such as the mighty-armed son of Subhadrā, all blew their respective conchshells.

Purport: 

Sañjaya informed King Dhṛtarāṣṭra very tactfully that his unwise policy of deceiving the sons of Pāṇḍu and endeavoring to enthrone his own sons on the seat of the kingdom was not very laudable. The signs already clearly indicated that the whole Kuru dynasty would be killed in that great battle. Beginning with the grandsire, Bhīṣma, down to the grandsons like Abhimanyu and others – including kings from many states of the world – all were present there, and all were doomed. The whole catastrophe was due to King Dhṛtarāṣṭra, because he encouraged the policy followed by his sons.

Bg 1.19

sa ghoṣo dhārtarāṣṭrāṇāṁ
hṛdayāni vyadārayat
nabhaś ca pṛthivīṁ caiva
tumulo ’bhyanunādayan

Translation: 

The blowing of these different conchshells became uproarious. Vibrating both in the sky and on the earth, it shattered the hearts of the sons of Dhṛtarāṣṭra.

Purport: 

When Bhīṣma and the others on the side of Duryodhana blew their respective conchshells, there was no heart-breaking on the part of the Pāṇḍavas. Such occurrences are not mentioned, but in this particular verse it is mentioned that the hearts of the sons of Dhṛtarāṣṭra were shattered by the sounds vibrated by the Pāṇḍavas’ party. This is due to the Pāṇḍavas and their confidence in Lord Kṛṣṇa. One who takes shelter of the Supreme Lord has nothing to fear, even in the midst of the greatest calamity.