The offensive-minded Frederick advocated the oblique order of battle, which required considerable discipline and mobility. This tactic failed at Kunersdorf primarily because of the terrain, which could not be used to an advantage. The Russians had arrived early and fortified themselves on the high ground. Frederick used oblique order to great success at Hohenfriedberg and later Leuthen. After a few initial volley fire, the infantry was to advance quickly for a bayonet charge. The Prussian cavalry was to attack as a large formation with swords before the opposing cavalry could attack.