At When the US will stop the war

Since the Attack of the 9/11 until now it's just like American still in the war.It's just over  240,000 active-duty and reserve troops in the at least 172 countries. What all those Army around the world are we still in war?
when we look around the world the US is not only in the conflicts in Afghanistan, Iraq, Syria, and Yemen but they are also involved in Niger, Somalia and recently in Jordan and Thailand. I know it's important to protect our country but for me, it seems like is too much and doesn't make any sense to blow all that money in the name of security. In my opinion, all those army and soldiers are not out there to protect us but to control the other countries move. Let share some pertinent statistic. the budget of the defense this year when up to $598 billion OMG yes! but the one for education is $68 almost 9 times the defense budget. I understand that but, what I can't understand is why we still paying a high college or university tuition when we have a lot of money to squander out like that? why we can not have a healthcare almost free? Why when you live in America you almost feel like all money we are working just going to pay bills?
For me, I think we have a real war inside this country so we don't need to be much focus out of our border, maybe it's time for the government to really think about the questions which matter for us. We need cheap education we need cheap healthcare, we don't need student loan which could exist even after I passed away.