(pikes) of the Scots and Swiss were an excellent defensive weapon against cavalry. The warriors stood in tight formations like an ancient phalanx, the end of their pikes embedded in the ground, presenting a massive spiked wall. In battle against the Scots, the English knights proved to be as narrow-minded as their French counterparts, employing the classic cavalry charge despite the new challenge of the Scottish pike. In the battles of Stirling Bridge (1297) and Bannockburn (1314) they were defeated by the Scots. While the English imitated this tactic successfully against the French, the Swiss perfected it. Despite longer lances for the knights, this formation was now almost impenetrable. Pikemen with polearms remained an important part of armies throughout the Thirty Years' War. Later tactics used against this formation included caracole maneuvers with ranged weapons. However, a well-trained cavalry force could outflank a force of enemy pikemen on even terrain and triumph. The most elite knights, with the best armour, immense prowess and extremely-well trained horses, could charge pike formations and still, even if only scarcely, hold their own, sometimes even triumphing; however, the cost to raise and maintain such troops was enormous and impractical when considering alternative options to the head-on charge. Lancers needed firm even ground and ample unobstructed space for a cavalry charge to be effective. Opponents could limit avenues for such charges by deploying their forces near rivers, marshes, woodlands, or other types of rough terrain. The later Roman generals were able to defeat the Parthian Cataphracts by securing their flanks. The Scots did this at Bannockburn and Stirling, and in nearly all their guerilla fighting against the English, as did the Welsh to a great extent. The Swiss defeated the Austrian knights at the Battle of Morgarten (1315) by attacking the knightly army in a narrow place between an acclivity and a swamp. The peasants of Dithmarschen faced in 1500, at Hemmingstedt, the army of the Danish king. They opened the dykes and flooded the country. If the terrain was not well suited for a cavalry attack, knights often fought on foot and used their lances as pikes. New tactics of light cavalry and mounted infantry With increasing firepower and no sufficient protection, the role of cavalry on the battlefield was slowly reduced. Light cavalry with firearms could return fire, but the aim from a moving platform was not as good as for infantry. So