Unknown to many, Arjuna's young son Abhimanyu had the knowledge to penetrate the formation but did not know the way out. At the request of Yudhishthira, Abhimanyu agreed to lead the way for the Pandava army and was able to penetrate the formation. However, he was trapped when Jayadratha, the king of Sindhu, held the Pandava warriors who were following him, at bay. Abhimanyu did not know how to get out of the Chakravyuha, but embarked upon an all-out attack on the Kuru army, killing tens of thousands of warriors single-handedly. Drona is impressed with Abhimanyu and praises him endlessly, earning the ire of Duryodhana. With his army facing decimation and spurred on by Duryodhana's criticisms, Drona asked the Kaurava warriors to simultaneously attack Abhimanyu, to strike down his horses and his charioteer and to disable his chariot from different angles. Left without support, Abhimanyu began fighting from the ground. Exhausted after his long, prodigious feats, Abhimanyu was eventually killed.