I think the very ancient force Rudy referred to is satan, who is the real force behind everything we are fighting against.  This is a spiritual battle of the greatest magnitude and God is calling out the faithful to put on the armour of God.  He doesn't need US to win this battle (Jesus could have called 10,000 angels) but he gives us the privilege of choice...to be on the side of victory, to be light in the darkness. "Choose you  this day whom ye will serve; but as for me and my house, we will serve the Lord." Joshua 24:15