Lt. Gen. Riccardo Marchiò represented the NRDC-ITA during his visit at Extrema Ratio, combat knives factory in Prato, Tuscany. Extrema Ratio has been designing, manufacturing and selling high performance combat knives since 1997 enjoying a reputation for excellence in the military and tactical knife industry. Extrema Ratio serves military and law enforcement communities as well as commercial markets and the knives are well known and sought after all over the globe.