Hate is all consuming. Germany was a bombed out desolate landscape in May 1945. 1789, man did the Frenchies ever fuck that up! Their rabid hatred cost them a quarter century of warfare with a monarch reinstated and seven million dead.
The Battle of Waterloo was grinding into the Battle of Malplaquet II. Neither Napoleon nor Wellington could achieve a breakthrough, human life was very cheap. Then General Blucher and the Prussian Army arrived, he ordered an immediate cavalry charge. The French were suddenly caught in a trap they always avoided, they were fighting on two fronts.