At the time, several princes complained that they were being betrayed by Britain, who they regarded as an ally, and Sir Conrad Corfield resigned his position as head of the Political Department in protest at Mountbatten's policies. Mountbatten's policies were also criticised by the opposition Conservative Party. Winston Churchill compared the language used by the Indian government with that used by Adolf Hitler before the invasion of Austria. Modern historians such as Lumby and Moore, however, take the view that Mountbatten played a crucial role in ensuring that the princely states agreed to accede to India.