This policy (1765- 1813) was reflected in Warren Hastings wars against the Marathas and Mysore, and aimed at creating buffer zones to defend the Company's frontiers. The main threat was from the Marathas and Afghan invaders (the Company undertook to organise Awadh's defence to safeguard Bengal's security). Major powers such as Hyderabad, Awadh and the Marathas accepted subsidiary alliance. Thus, British supremacy was established.