Gurkha word itself derived from "Go-Raksha" (), "raksha" becoming "rakha" (रखा). "Rakhawala" means "protector" and is derived from "raksha" as well. There are Gurkha military units in the Nepalese, British and Indian armies enlisted in Nepal, United Kingdom and India. Although they meet many of the requirements of Article 47 of Protocol I of the Geneva Conventions regarding mercenaries, they are exempt under clauses similarly to the French Foreign Legion. Gurkhas are closely associated with the khukuri, a forward-curving Nepali knife, and have a reputation for fearless military prowess. Former Indian Army Chief of Staff Field Marshal Sam Manekshaw once stated
Knife sharpening one source for honing stones, which are traditionally used with water or honing oil. India is another traditional source for stones. Ceramic hones are also common, especially for fine grit size. Japanese water stones (both artificial and natural) come in very fine grits. Before use, they are soaked in water, then flushed with water occasionally to expose new stone material to the knife blade. The mixture of water and abraded stone and knife material is known as slurry, which can assist with the polishing of the knife edge and help sharpen the blade. Generally, these are more costly than oilstones.