The ground is shaking as they're rolling down the street And there is fear in people's eyes Organic war machines The unkind second fleet Alien brains computerized Spitting lightnings – pulsing laser Throwing bodies to the wall Cruel and fighting infantry Metallic heartbeats – angry roar Constant heart Constant heart Prepared for counterstrike we gather in the hell To map a damning battle plan Joining the forces with the ones we fought before The evil menace against man Blood red eyes – side by side Avenge our losses – no retreat There's just one thing in our minds Victory implicidly Constant heart Constant heart Dead bodies everywhere We will avenge We stand together This army of mankind Will not surrender We've saved earth and now we know We're different races but we're one No religion, and no strong man Should be a cause to start a war Constant heart Constant heart Constant heart Constant heart