From the link provided by 999 above - but is it the song that was requested?

When The Battle's O'er

WHEN THE BATTLE'S O'ER

I return to the fields of glory,
Where the green grasses and flowers grow,
And the wind softly tells the story,
Of the brave lads of long ago.

CHORUS:
March no more, my soldier laddie,
There is peace where there once was war,
Sleep in peace, my soldier laddie,
Sleep in peace, now the battle's o'er.

In the great glen they lay a sleeping,
Where the cool waters gently flow,
And the grey mist is sadly weeping,
For those brave lads of long ago.
Chorus....

See the tall grass is there awaiting,
As their banners of long ago,
With their heads high, forward threading,
Marching lightly to meet the foe.
Chorus....

Some returned from the fields of glory,
To their loved one who held them dear,
But some fell in that hour of glory,
And were left to their resting here.
Chorus....