Peace is a War

There was this MGMT song that for the longest time before I payed attention to it's title I thought was called "Peace is a War". Turns out the song is actually titled "Pieces of What". Although I was wrong in my translation I still think it says a lot, that phrase. I wonder what other things are so opposite that they live off of each other that way? Can there ever be one without the other? Where and how does that exist? I am aware peace is a war, but it is one I don't believe that can be fought with rocks, guns, airplanes or bombs. I believe in that war. I sure as hell will be fighting.