In Mahabharata (Hindu epic), why did Abhimanyu enter the Chakravyuh?

In Mahabharata (Hindu epic), why did Abhimanyu enter the Chakravyuh? Why would anyone risk their life entering the Chakravyuh? What was the point? What is the expected outcome when a person breaks the Chakravyuh? Originally Answered: Why did Abhimanyu enter the Chakravyuh? He as a warrior and son of Arjun took the responsibility to break. Drona had designed this configuration in order to capture Yudhishthira. On the side of the Pandavas, only Krishna and Arjuna were aware of the secret technique to break this seven-tier, defensive, spiral formation. Seeing Yudhishthira's panic, Abhimanyu revealed that while he didn't know how to exit the formation, he would be able to break into it. A plan was formulated that the Pandava forces would enter the Chakravyuha after Abhimanyu and shatter it from within. But as soon as Abhimanyu entered the Chakravyuha, Jayadratha stopped the four Pandavas from entering it. Inside the Chakravyuha, the trapped Abhimanyu went on a killing rampage. He killed tens of thousands of Kaurava soldiers and attempted to break through the Kaurava formation from the inside. He defeated great warriors like Drona, Kripa, Aswatthama, Duryodhana, Salya, Dussasana, Bhurisrava and killed many prominent heroes including Duryodhana's son Lakshmana, Salya's son, Rukmaratha, Kritavarma's son, Matrikavata, Salya's brother, King Vrihadvala and many others. Karna was the only warrior who was able to match the young warrior in battle. Finally, a strategy was formed and a joint attack on Abhimanyu followed. Karna cut off Abhimanyu's bow, Kripa killed his two chariot-drivers and Kritavarma killed his horses. Abhimanyu took up a sword and a shield but these weapons were cut off by Drona and Karna. Abhimanyu then took up a chariot-wheel and threw it at Drona but Karna and Aswatthama saved Drona by cutting the wheel. Abhimanyu then took up a mace and smashed Aswatthama's chariot. Turning Abhimanyu killed one of Sakuni's brothers and many soldiers and elephants. Then he smashed the chariot of Dussasana's son, who took a mace and confronted Abhimanyu. A badly wounded and exhausted Abhimanyu was finally killed by Dussasana's son who smashed the fallen Abhimanyu's head with his mace. Abhimanyu died at an early age of sixteen when Subhadra was pregnant, Arjuna told her the technique to enter in Chakravyuha and child Abhimanyu listened in mother's womb. But before Arjuna would tell her the way to get out she fell asleep and the child could not listen to it. This is often quoted as an example that foetus can hear the sound and pregnant lady should not hear or see anything which will create negative, sad, criminal movies or incidents. This is also quoted on how much partial knowledge can be destructive to an individual and society.