Eire Og - The Sam Song chords

Yet another one of my favourite rebel songs, and another by Éire Óg.
The chord progression is the same through the whole song.

Well[Am] I have been a Provo now for[G] 15 years or more
With[Am] armalites and[C] mortorbombs I[E] though I knew the score
But[Am] now we have a weapon we've never used before
The[C] Brits are looking worried and their[E] going to worry[Am] more

Chorus

Tiocfaidh Ar[G] La,sing Up the[Am] Ra
[C]Sam missiles[Em] in the[Am] sky

Chorus
[ Tab from: http://www.guitaretab.com/e/eire-og/225305.html ]
I started off with petrol bombs and throwing bricks and stones
With a hundred more lads like me I never was alone
But soon I learned that bricks and stones wont drive the Brits away
It wasn't long before I joined the I.R.A.

Chorus

Then there came internment in the year of '71
The Brits thought we were beaten,that we were on the run
On that early August morning they kicked in our door
But for every man they took away,they missed a hundred more

Chorus

I spent eight years in the cages,I had time to think and plan
For though they locked away a boy,I walked away a man
And there's only one thing I learned while in their cell I lay
The Brits will never leave us,until there blown away

Chorus

All through the days of hunger strike I watched my comrades die
While in the streets of Belfast you could hear the women cry
I cant forget the massacre that Friday at Loughgall
I salute my fallen comrades,as I watch the choppers fall