added to the bomb with a flame on the left, overlapped by two crossed daggers, the paratrooper's canopy and the right wing of the Aviotruppe's medal. Granatieri di Sardegna The Granatieri di Sardegna is one of the oldest regiments of infantry in the Italian army. The force originated in Sardinia is now based in Rome. This brigade of two infantry regiments and one support regiment is responsible for the guarding of the president. The regiment has its own traditional full dress uniform. The uniform is black with red ornaments and contains a big black bearskin hat almost similar to that of the British King's Guard. It holds the grenade badge, the badge of the constituent regiments. Alpini The Alpini are the oldest mountain infantry in the world and one of the Italian special forces. A special feature of their uniform is the Cappello Alpino, that carries a black raven feather, a garment that gave this force the nickname: "The Black feathers" (). Officers traditionally had a white eagle feather instead of the black one. When the force was created, the hat worn was made of black felt. This was changed when the new green-grey uniform was adopted in 1909. Since then, the hat was changed to the distinctive grey felt that is currently being used. The Alpini has distinctive green cuffs on the dark blue tunics worn for full dress and barrack dress before 1915, and by the green piping on their light blue/grey trousers. When grey-green service uniforms were tried out by the Alpini in 1906, before the entire army adopted them in 1909, the distinctive green collar patches and typical headdress were retained and are still in service. Italian Navy The Italian Navy () is the navy of the Italian Republic. The Italian Navy is divided into different corps: Corps of Staff Officers, Corps of Naval Engineering, Corps of the Naval Arms, Maritime Military Medical Corps for medics and for Pharmacists, Corps of Military Maritime Commissariat, Corps of the Port Captaincies and Corps of the Military Maritime Crews . Since 1861, the materials and uniforms used by the Italian Navy have been adjusted and often re-designed as the service evolved. The current uniforms are based on the Marina Militare rank system, and come with variations in rank and on a seasonal basis. The uniforms also vary depending on the location where the personnel are serving, with different uniforms