Kukri knife-machete

Blade Kukri has a characteristic profile of the wing Falcon with the sharpening on the concave faces (that is, it is a knife with a so-called "reverse curve"). Considered that the Kukri is derived from the Greek kopisa, which is like bending, and ended up in Nepal with the army of Alexander the great in the 4th century BC.
According to another version, the characteristic shape of curved blade, cloistered on the inside, was brought from Africa to Greece in the 6th century BC, and from there it spread into the Balkans and the Middle East, influencing a scimitar and a number of knives in the region. Nepalese Gorkha is used!