You can click here: LETTER FROM LBJ but it is best to learn the DT search system.

The song is essentially at two chord song.....alternating between the 1 and 4 chords (the chorus can slip into a very brief 5 chord but it is not necessary)

IE....key of C would be C and F
OR...key of G would be G and C

The lines basically alternate:

C - I got a letter from LBJ
F - Saying this is your lucky day
C - Its time to put your khaki trousers on

C - Though it isn't really war
F - We're sending etc. etc.

Probably, the first real "protest" song I learned....got it from the Los Angeles Free Press and the chords were easy.