Bg 1.3

pasyaitam pandu-putranam
acarya mahatim camum
vyudham drupada-putrena
tava sisyena dhimata

Word for word: 
pasya — behold; etam — this; pandu-putranam — of the sons of Pandu; acarya — O teacher; mahatim — great; camum — military force; vyudham — arranged; drupada-putrena — by the son of Drupada; tava — your; sisyena — disciple; dhi-mata — very intelligent.

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O my teacher, behold the great army of the sons of Pandu, so expertly arranged by your intelligent disciple the son of Drupada.

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Duryodhana, a great diplomat, wanted to point out the defects of Dronacarya, the great brahmana commander in chief. Dronacarya had some political quarrel with King Drupada, the father of Draupadi, who was Arjuna’s wife. As a result of this quarrel, Drupada performed a great sacrifice, by which he received the benediction of having a son who would be able to kill Dronacarya. Dronacarya knew this perfectly well, and yet as a liberal brahmana he did not hesitate to impart all his military secrets when the son of Drupada, Dhrstadyumna, was entrusted to him for military education. Now, on the Battlefield of Kuruksetra, Dhrstadyumna took the side of the Pandavas, and it was he who arranged for their military phalanx, after having learned the art from Dronacarya. Duryodhana pointed out this mistake of Dronacarya’s so that he might be alert and uncompromising in the fighting. By this he wanted to point out also that he should not be similarly lenient in battle against the Pandavas, who were also Dronacarya’s affectionate students. Arjuna, especially, was his most affectionate and brilliant student. Duryodhana also warned that such leniency in the fight would lead to defeat.