Bring Our Troops Home.

I was so incredibly saddened to hear of the American soldier who is accused of shooting 16 civilians including 9 children in Afghanistan. In his 10 years of military service he has served 3 tours in Iraq and was  upset, along with his family, to learn that he would be deployed to Afghanistan. Everyone that knows him is shocked by his actions and one can only assume he was pushed to his breaking point and possibly suffering from post traumatic shock disorder.
I have absolutely no idea what it must be like to serve in a war. Hero is not strong enough of a word for men and women who volunteer to serve and give their lives protecting our country and freedom. I personally feel enough is enough. To expect any of them to serve 4 tours in war zones seems excessive. Either we need more soldiers or we need to scale back our presence in so many countries. And we definitely do not need to start any more wars. Going to war in Afghanistan after 911 to bring down the Taliban and Osama Bin Laden has in my opinion been too costly in dollars as well as in lives. Yes I am glad Osama is dead but have we really done anything to deter Al Qaeda? The Iraq war based on "weapons of mass destruction" was a farce. And now there is talk of going to war in Syria and Iran. Is it completely naive of me to believe "leave us alone and we will do the same"?! I understand we have to protect our interests abroad and I understand that we can not sit back as Americans and watch horrible dictators kill and slaughter their own people. But why is it always the US that is the leader in such causes and therefore with the most lives lost? And no one likes to admit this but isn't it true that our actions abroad and interference in other countries is what leads to actions by terrorists like 911? We have military bases in hostile territories all through the Middle East. We are not modest about our western culture and Americans feel our democratic system is a must for all. But I do not believe it is. I can understand why many countries hate the arrogance of Americans and want them out of their country to the point of attacking us here on our own.
As you can tell from above I am no Condoleeza Rice. I am not well versed in issues of National Security. I am just a citizen who is heart broken by the effects of these wars. I want all world leaders to think hard and long before attacking each other. I want our troops home and safe with their families.
Thoughts?