I missed that post where boab said it was the British Army, because I was writing my one assuming (on statistical grounds) that he was probably American.

Not that it makes much difference. Except that over here, with people generally being against the war, someone refusing to serve might expect to have a lot more support from friends and neighbours than in the States.

Here's a link to a practical page about Conscientious Objection for people in the services - the authorities have alway resisted the idea of accepting that people can have a conscientious objection to specific wars because they see them as "unjust", but a situation where there's a war, and less than one in ten people support it (which was the latest poll on the BBC), it might be harder for them to hold this line.