Are you talking about the War in Iraq, which Obama boasted continuously about ending, despite loud criticism at the time that he was creating the conditions for what's going on right now with ISIS?
I wouldn't be boasting about that anymore, his related words are now one of those things his opponents publish on Twitter so as to illustrate how incompetent he is.
So you're telling me we wouldn't be at war now if only we hadn't ended the war? It's not enough that my friends did 5-10 tours? How many more did you want us to do?