The main body of the army would then spread their forces to one side and deploy in an echelon (or the "oblique order"), spreading their firepower and attacking the stronger enemy flank with increasing pressure. The protective cavalry would then exploit any enemy collapse. Frederick first implemented his oblique order at the Battle of Hohenfriedberg, in 1745, with a subsequent major victory, despite numerical inferiority, at the Battle of Leuthen in 1757. It was in this decade, between the Silesian Wars and the Seven Years' War, that Frederick had his army perfect all the manoeuvres of the oblique order of battle.