Edward Shepherd Creasy,
15 decisive battles of the world Vol 2
(1851)
“ At the end of July the allied army, having fully completed all preparations for the campaign, broke up from its cantonments, and marching from Luxembourg upon Longwy, crossed the French frontier. Sixty thousand Prussians, trained in the school, and many of them under the eye of the Oreat Frederick, heirs of the glories of the Seven Years War, and universally esteemed the best troops in Europe, marched in one column against the central point of attack. ”
