Why did Drona support the Kauravas?

Drona is the preceptor of the Kauravas and Pandavas in the Mahabharata. He is the son of Sage Bharadwaja, famously taking birth in an earthen vessel – a ‘Drona’.

Despite being a Brahmin by birth, Drona becomes tired of living a life of penury with his wife Kripa and son Ashwatthama. He comes to Hastinapur in the hope of making his fortune.

Here he is discovered by Bhishma, and given the role of royal teacher to the Kuru cousins.

In the Kurukshetra war, he fights by Duryodhana’s side and...