Capo 3

Em  D9 - D Em G - G/f# - Em

Em                    D9 - D                  Em                    G - G/f# - Em
Why do we build the wall, my children my children why do we build the wall
Em                    D9 - D - D4 - D               Em                           G - G/f# - Em
Why do we build the wall we build the wall to keep us free that's why we build the wall we
 build the wall to keep us free

Em                            D9 - D - D4 - D       Em                              G - G/f# - Em
How does the wall keep us free my children my children how does the wall keep us free
Em                         D9 - D - D4 - D                Em                        D
How does the wall keep us free the wall keeps out the enemy and we build the wall to keep us free
Em                              G - G/f# - Em
that's why we build the wall we build the wall to keep us free

etc.

the song carries on with the same chord progression thoughout. each choral part 
gets one line longer each time.

enjoy!