Defence must be more adaptable, able to respond quickly to the changes in the security environment and the character of conflict.

I never expected to be Defence Secretary. It's a great privilege.

Failure in Afghanistan would have profound consequences for our national security. It would undermine the NATO alliance structure that has been the bedrock of Britain's defence for the last 60 years... I will not allow this to happen on my watch.

I have always had a keen interest in defence and military history and read more on this subject than anything else.

I was Minister for the Armed Forces in the Ministry of Defence for two years prior to being appointed Defence Secretary.

I am extremely honoured to be the Defence Secretary, and I would not do the job if I did not think that I could make a useful contribution in the role.