By Joseph Gannon My country men awake! arise! our work begins anew! Your mingled voices rend the skies, your hearts are firm and true, You've bravely marched and nobly met, our little green isle through; But, oh! my friends, there's something yet for Irishmen to do!  On July 11, 1921, a truce was declared between the forces of Great Britain and the Irish Republican Army. The war that had begun on…