Smatchet
A smatchet is a short, heavy fighting knife 16.5 inches (42 cm) in overall length (including grip). It was designed by William E. Fairbairn during World War II. == Design == Though described in the Office of Strategic Services catalogue as a cross between a machete and a bolo, it was actually based on the Royal Welch Fusiliers Trench Knife of World War I, and was designed as a pure combat knife.