I guess you can refer to a football game as a sort of "mini battle". Every play, every block can affect the outcome of the war. It is a massive blur of sweat, turf, blood and bodies. The outcome of a game, good or bad, can change in a matter of seconds. Just one blown coverage, one missed contain, one missed block, and the whole game goes down the drain. However, when the crowd starts cheering, and the morale of the team increases, you feel invincible. You feel like no one can touch you. That man on the other side of the line is some low-down, dirty dog who isn't even good enough to eat your dust. And when the ball is snapped, you show him that your prophecy is true, you're untouchable.
On the offensive line, it is like a massive compaction machine that works at full speed for forty-eight minutes. Every snap is a collision; all nine players unloading at once. Every hit is like thunder, echoing in your ears. Your face is drenched in sweat, yours and your opponents, but you don't notice. Your only goal in mind is keeping that six foot three inch, two hundred and thirty pound defensive tackle off of your precious quarterback. After your little running back dances forward for four or five yards, you huddle up and get ready to do it again. If football were a war, these nine men would be on the front lines, the point of action, the dirty workers, the hogs. That's what they're for, to command and conquer.
However, on the other side of the line, it's a completely different story. You're not worried about that guy in front of you. All you're thinking about is where that running back is going with your ball. He stole it from you, and it's your job to get it back. You're on defense, you're protecting your domain, that end zone is your back door, and your enemy is marching up to it at full speed. But you won't let anything happen to it; this is your home, yo...