A calvary sword is a light, strong sword used by knights.
The cavalry sword, also called an arming sword, was a typical weapon of knights. Contrary to popular belief, it was not used in hand to hand combat between knights, but actually was used to slaughter the poorly armed peasants who filled out the ranks of most armies. Against a knight's armor, a sword would have been completely useless. However, its double-sided blade and wicked point made it a choice weapon for engaging unarmored, poorly armed foes. The typical arming sword was double edged, had a sharp point, and was equally suited to the cut and the thrust.