Throughout the wars undertaken by Frederick the Great, probably his greatest resource was his infantry. It is a mark of the king’s determination that despite wars which almost destroyed both Prussia and its army (such as the Seven Years’ War), he was able to maintain its numbers even if the quality declined as the attritional campaigns took their toll. Philip Haythornthwaite examines the uniforms, tactics and organisation of Frederick’s infantry in detail a fighting force that contested battles such as Mollwitz, Hohenfriedberg, Kesselsdorf, Liegnitz, Burkersdorf and the siege of Prague.