Look, I'm as patriotic as the next guy but you can't seriously puke over a mission accomplished joke. I mean, come on, it's a classic. Every USian knows that the banner was for the boat, it's old news... but it's still funny. I hit lefties with the "mission accomplished" action all the time, what's the harm?
You don't need to tell me about sacrifice for country. How many friends did you lose as a soldier? I lost two and I was very close to one of them (he had a wife and three young kids).
Lighten up, Francis.