I'm not very sure if chords are what Bob used, but they sound proper to my ears.

             D       D/C          D/B             A
  There's an army of children who gathered in the night.
       D                 D/C                   D/B            A
  They are your sons and daughters who've been wounded by the light.
       G       G/F#  Em      G    A
  They rise up angry singing this song,
               G        G/F#    Em        G   A
  Called, "How Long Can This Go On And On And On?"
  
  
           Am                           F#7
  It's the peaceful one inside us whose time it is to die.
  Bm                                    G
  Words are words and guns are guns and children cry.
           Em                            A
  Will you give us just one reason to survive?
  Em                            A
  Give us just one reason to survive!
  
  
          Am                           E
  Are you just a little numb, for it's gone on for so long?
          G                             Bm
  Can you still feel the pain as they engrave your name again?
         F                                  Am
  On the weapons that they choose, what the hell is left to lose?
                   C                       E                Am   G   F   D
  'Cause when your back's against the wall, you're bound to fall!

This song was written as a tribute to Phil Ochs