The meaning of song lyrics

I always liked this song but could never grasp its meaning. Especially pinning it down to a time period\specific war. Wondering if anyone has any thoughts on it?

http://www.youtube.com/watch?v=BOrXTZyXWLg (Youtube is blocked by my proxy, might be a better album version available)

Lyrics:

I'm just an aging drummer boy
And in the wars I used to play
And I've called the tune
To many a torture session
Now they say I am a war criminal
And I'm fading away
Father please hear my confession

I have legalised robbery
Called it belief
I have run with the money
I have hid like a thief
I have re-written history
With my armies of my crooks
Invented memories
I did burn all the books
And I can still hear his laughter
And I can still hear his song
The man's too big
The man's too strong

Well I have tried to be meek
And I have tried to be mild
But I spat like a woman
And I sulked like a child
I have lived behind walls
That have made me alone
Striven for peace
Which I never have known
And I can still hear his laughter
And I can still hear his song
The man's too big
The man's too strong

Well the sun rose on the courtyard
And they all did hear him say
You always was a Judas
But I got you anyway
You may have got your silver
But I swear upon my life
Your sister gave me diamonds
And I gave them to your wife '
Oh Father please help me
For I have done wrong
The man's too big
The man's too strong

Well the song could have mulitple meanings its up to the listener there's no right or wrong answer.

songmeanings.net is an excellent site for lyric interpretations

http://www.songmeanings.net/songs/view/5861/