Fighting knife the Kukri, a broad-bladed, curved general-purpose cutting tool and weapon with Indian origins. In other countries the machete or Filipino Bolo were often used as fighting knives by indigenous military or paramilitary forces. Colonial powers that encountered these general-purpose weapons used as fighting knives during a military campaign occasionally adopted them in turn for use by their own military forces, as exemplified by the U.S. Army's Model 1910/17 "Bolo" brush-clearing knife, which would be later pressed into service as a fighting knife in both World Wars. In World War I, military use of the fighting knife saw the introduction of
Crooked knife another source. The shape of the blade, whether curved or straight, is a function of the carving purpose of the user: straight for whittling wood, making splints for baskets and incising, curved for hollowing out bowls and masks and ladles, as well as myriad other usages. The crooked knife is drawn toward the body, with the thumb ergonomically placed along the flattened bottom of the handle, the hand clenched with the palm up. Drawing the blade toward the user the knife allows great range of movement and precision. The handles of the knives are typically made of wood but can