Was it? Did Norway go to war when they were attacked? Did France mobilize troops in foreign countries when they were attacked by Islamic extremists? They reacted. They did not invade a country that will now become our problem for the next hundred years or so. There's an interesting statistic that America has not known peace, there has always been some sort of conflict for my nearly 20 years of living, from Somalia, to the relief in Bosnia, Sierra Leone, East Timor, among many others.
I support our troops, I do. I support our marines, our sailors, our airmen, our soldiers, our coast guard, everyone in the service. But would I consider them heroes? Would I consider someone who's in the Army, sitting at Fort Bragg a hero? No. Military service doesn't automatically qualify you to be entitled to anything except what you signed up for, everything else is earned. From what I gather from being with people from other countries (South America, Eastern Europe, Asia) they don't have the hard-on for their militaries like we do.
Maybe it's just a matter of perspective. But I would advise you not to be a blind patriot, waving your flag and saying THANK YOU to every soldier or servicemen you see. Chris Kyle is an example of what happens when a narcissist goes into the service. In my book, and the soldiers I've met and seen, he doesn't act like an American hero should. I appreciate, however, what he did and tried to do for servicemen with PTSD, even though i disagree with what he said in his book and allegedly did, especially when he said that he found WMD materials, didn't feel any remorse for killing anyone, or punched Jesse Ventura and made him seem like a bad, perhaps permanently damaging the man's reputation.
Don't let anyone tell you that we invaded a country for 9/11. If we wanted to invade a country, you should know that it was 19 people who started two wars. 15 out of those 19 were Saudi Arabian. The others were from Egypt and Lebanon. We didn't invade their countries. We attacked Afghanistan, perhaps justifiably so, but I fail to see a reason to go into Iraq, which created a power vacuum as soon as we left- and now allowed groups like ISIS to establish control in many areas of Iraq.