When?
The Prince has visited British troops in both Afghanistan and Iraq on a number of occasions. He routinely attends ceremonies honouring British troops who are fighting in those theatres, and who have died in those theatres.
The Prince despises terrorism in all its forms - he lost one of his closest friends and mentors to Irish terrorists. And he has been nothing but supportive of British military action in the current war, including those actions in support of the United States.
I've no idea what you are referring to with regards to President Bush either, but I admit something might have happened there that I don't know about - but I pay attention to what the Prince says on matters military.
Say what you will, there are only a handful of political leaders on both sides of the pond who have had children in harm's way.