Sanjay knowing the motive of asking question from Dhrtarastra, who was always favoring all right and wrong desires and deeds of his own sons and has a strong desire to see his son win the war, therefore in the begining itself he is indicating to King that no compromise was made in the battle field and worst is that united motivated army of Pandavs has made his stubborn dictator sons nervous and worried.
O My teacher! look upon the extensive army of sons of Pandu, skillfully strategically arranged by your intelligent disciple Dhristadyumna son of Drupada. (Bhagavada-Gita: 01/03)
Shrewd Duryodhana is addressing Guru Dronacarya as Acarya –Teacher to realise him as teacher of both the parties Karovas, Pandavas, he should be unbaised, and to fight war without sympathy for Pandavas.
To exploit the sentiment of Guru Dronacarya he is stating that his student has arranged army meticulously to defeit and kill his own Guru-Teacher, from whom he has learn the art of war.
King Drupada father of Draupadi who was wife of Arjuna had long standing quarrel, the clash motivated King Drupada to perform yogna-ritual to be blessed by son who would kill Guru Dronacarya to settle the score. A received a son in post ritual , who was called Dhristadyumna. Surprisingly knowing all these fact liberal Guru Dronacarya, excepted Dhristadyumna as his student and did not hesitatd in imparting his all military expertise. Duryodhana is trying to point out the mistake which Guru Dronacarya has committed by this way, and expected that Guru Dronacarya will be alert, not to be lenient while fighting.
Duryodhana could have called the name of Dhristadyumna directly but he deliberatelly called Dhristadyumna as a son of Drupada to awake up revenge feeling in the mind of Guru Dronacarya by reminding their old fued.
Duryodhana tried very well to divert the mind of Guru Dronacarya that he has caused war to his traditional enmity with King Drupada and to generate feeling of hate and revenge, by indicating that Pandavas has so many brave outstanding warriors, however Pandavas have chosed Dhristadyumna as chief of their army whose family has taken pledge to eleminate Guru Dronacarya. This is an act of dissrespect and humiliation of Guru Dronacarya by Pandava.
Though the Karavas has eleven ochohini regiment of army and Pandavas has only seven ochohini regiment of army. However the army of Pandavas was arranged in such a way that they were also looking sizeable. Duryodhana has very understood that underestimating united army of Pandava, everyone with same objective will be blunder.
Hidden purpose of Duryodhana was to communicate to win war against the disciple is not a difficult factor for Guru Dronacarya and he should think and act immidiatelly see the gross warning situation. Mature Guru Dronacarya was unaffected from the misleading communication and maintained his calmness balance.
Sanjaya stated ! At that time looking at the army of Pandavs arranged in elephant shape King Duryodhana went to Guru Duryodhana and spoke this diplomatic speech. (Bhagavada-Gita: 01/02)
Dhrtarastra has first inquired about act of his sons thus accordingly Sanjaya is first explaining the movements of Karovas in battlefield. The army of Pandavas were well organised in huge gigantic shape, highly determined with common vission to dethrone the dictorship of Karavas, with the blessing of religion andf Divine-God. The affect of military arrengement of the Pandavas was highly impresive upon the opponent including Duryodhana, he felt unease and alarmed on the possible fallout and he felt utmost crucial to gain confidance of Guru master Dronacarya and Bhismapitama.
Duryodhana has been addressed as king because Dhrtarastra was king for name shake, in all practical purpose Duryodhana was managing all the affairs of state and he was the main cause of war.
The porpose of shrewd Duryodhana to contact Guru Duryodhana and seeking his favour was to instigate hate in the mind of Guru Duryodhana against Pandava for his own vested interest.
Guru Dronacarya and Bhismapitama both were neutral, and giving importance to the view of both Karavas and Pandavas. Arjuna was very favorite of Guru Dronacarya this was big concern for the Duryodhana, whether Guru Dronacarya will fight full heartly in his favour. He thought that later on he will manage Bhismapitama on family line, first to approach Guru Dronacarya with showing lot of respect. People generally approach showing great respect to a person who is not in agree with him and there is lack of adoreable relationship.
To show his respect to Guru Dronacarya it was protocall to go to him and salute him. Also Guru Dronacarya was one of the key warrior in the camp of Karavas therefore, it was not wise to call Guru Dronacarya to convey the message, in absent of key commander army might be in disarray.
The Duryodhana who is polluted with material wealth, watching well presented holy army of Pandavas under Divine Shelter, gauging the seriousness of the situation rush to Guru Dronacarya and to influence him delivered a motivated deplomatic dialogue to ensure his effective support in war.
Sanjay knowing the motive of asking question from Dhrtarastra, who was always favoring all right and wrong desires and deeds of his own sons and has a strong desire to see his son win the war, therefore in the begining itself he is indicating to King that no compromise was made in the battle field and worst is that united motivated army of Pandavs has made his stubborn dictator sons nervous and worried.
On the other side still at battleground there was differences of opinion in Karavas, whereas Dhrtarastra, Duryodhana and Dushasan were in favor of war, Bhismapitama and Guru Dronacarya were in against to it.