Pretty cool! 
Raddled by pain and age at my last stand I raged;
Two vast plinths barred passage
And mutely mocked my disability.
The road behind churned to muck,
With gaping holes where bombs had struck--
Back I could not dare go, the future likewise barred to me.
"I'll return," I vowed, "though this age-blighted arm of mine can scarcely lift its spear. Somehow I will."
No breath replied, but only yawning darkness beyond those mighty stones that towered drear.
So back I struggled, and further back, and fought bitterly, and wandered far off track.
But in retreat I found strength,
And courage I had thought forever turned to rust.
Ages passed, but in time I faced the plinths once more, no longer withered, sad, or sore.
(I had only but to roar, though! and down they crashed.)
In my youth, therefore, I entered the portals of dust.
Not wanting to risk losing my job by spending hours and hours on this, I'll just stop here!