He is exercising his democratic rights. The same rights that we are trying to install in Iraq. How many people in Saddam's military
could have refused to go to war and not faced the death penalty?
It's a clear sign of a democratic society that people can choose not to go to war and the circumstances of the Doctor's refusal are that he believes he was deceived in terms of the justification to go to war and it's legality in light of new evidence.
There will undoubtedly be a new 'volunteer' to replace him out there and they might enjoy it or indeed they might not - but they have the same rights as him .
I hope the rest of your time out there is a safe one - it might not be to every taste but by the Doctor challenging the order actually strengthens the image of the forces and doesn't weaken it - if people are prepared to fight for our country they need to be able to understand that it can be the ultimate sacrifice they can make.