The unit was originally raised in 1963 as the 9th Para Sabateur Battalion, but was redesignated as the 9th Para-Raider Bn (Incursore) in 1980. From 1982 to 1984 the unit was deployed to Lebanon as part of a multinational peace keeping force trying to maintain order in the country. Over the last decade the unit has increasingly found itself being deployed in support of United Nations (UN) peace keeping/making efforts. In 1991 they found themselves deployed to Kurdistan in Northern Iraq during Operation Provide Comfort. In 1991 they were deployed to the former Italian colonies of Somalia, and Ethiopia. In June of 1991 they evacuated 250 from the Ethiopian capital of Addis-Abeda in response to the country's civil war. While the majority of the world was focused on developments in Gulf, Col. Moschin Incursori conducted a Non Combatant Evacuation Operation (NEO) of Western civilians from the Somali capital in a mission dubbed "Operation Ippocampo". In 1992 the Incursori were once again deployed to the war and famine ravaged nation of Somalia. The country's former communist backed government had completely collapsed, and the tribal clans who make up the country's population were battling for control of the resources that remained. The Italians were part of a multinational peacekeeping force. The force was supposed to help stabilize the country, and allow it to start moving toward recovery. The mission ended in failure and with the humiliating withdrawal of all UN forces in 1994. In 1994 the African nation of Rwanda began a bloody civil war. Thousands of innocent civilians were slaughtered by the various factions seeking to exterminate their rival tribes. Several Western European governments, with citizens residing in Rwanda, formed a joint evacuation force. The force would secure a safe passage for refugees, and evacuate any Western nationals. The Italian contingent was composed of Col. Incursori. The Italians, along with a company of US marines, were tasked with securing the area around the international airport at Kigali. In 1995 war erupted in the Middle Eastern nation of Yemen, and the Incursori were deployed to the area after a cease fire agreement was reached.

The unit has also been heavily committed to supporting Italian operations in Bosnia. They have maintained a constant presence there since 1992. The Incursori act as the Italian Brigade's reconnaissance and Quick Reaction Force. On March 31, 1996, while stationed in Sarajevo, the unit was redesignated as the 9th Reggimento D'Assalto "Col. Moschin". The Regiment is based at the Vannucci barracks in Livorno. It is currently composed of a Regimental HQ, a support company , the 101st training company, and the 1st "Incursori" Para- Raider Battalion. The Para-Raider Bn. is composed of three operational companies. The 110th and 120th "Incursori" companies are the battalion's two professional special operations units and are composed of seasoned officers and NCO's. The 111th "Guastatori" Company is composed of log service volunteers, who have agreed to extend the length of their draft in order to serve in the unit. The 111th is assigned to ACE (Allied Command Europe) Rapid Reaction Corps (ARRC), and acts in a LRRP role. Training for the Regiment varies depending on which company the prospective Incursori will be assigned to. Trainees for the Guastatori Co. undertake a 32-week training course within the 101st Training Co. During the course trainees receive instruction on land navigation, demolition, reconnaissance, marksmanship, field craft, and patrolling. Physical fitness is stressed throughout the course, with multiple timed speed and endurance marches being the norm. Officers and NCO's wishing to join the Regiment undergo an additional 52 weeks (A full year) of training. Their course includes a month of instruction on tactical free fall parachuting. A 12 week block of instruction provided by the Navy's COM SUB IN, at their Varigano base. During the 12 week course students receive instruction on the use of SCUBA equipment, underwater demolition, small boat handling, and navigation. During the boat handling phase students are taught how to use Zodiac inflatable boats, Plasteco RIB's, and two-man Klepper Kayaks. They also undergo 10 weeks of training at the Alpine Warfare School in Aosta. The students receive instruction in basic mountain warfare techniques and skiing. The last portion of their training is conducted in the field, under simulated combat conditions. SERE training is also included in this portion of their training.

Training also includes additional instruction in hand-to-hand, silent killing, small arms, heavy weapons, counter-terrorism, demolition, mine-clearance, communications, intelligence gathering, survival, through the duration of the course. Upon completion of the basic selection/training course some of the "Incursori", are selected to attended additional 6-month long specialization courses. The final obstacle is a 14-month long probationary period, during which the the new recruits are assigned to operate with seasoned assault teams, in order to complete their training. After a period of approximately 3 years specialized training, they are declared "full-combat-ready" and fully integrated in the 'G.O.I.' (Gruppo Operativo Incursori), receiving their 'Incursori' green beret. COMSUBINs primary mission is to conduct commando and sabotage type operations against naval targets. This includes targets "at sea" (military/civilian ships or oil rigs), and "coastal" targets such as harbours, coastal radar stations, intelligence and communications centres, ammunition or fuel depots, etc.

Secondary missions include: Beach reconnaissance; Mine clearing duties; Deep reconnaissance/intelligence raids; Hostage rescue/counter-terrorism operations; Difficult non-combatants evacuation (NEO) operations; Protection of official personalities and buildings in very high-risk situations; High-risk merchant/military ship's inspections.

GOI- Gruppo Operativo Incursori:
The "Incursori" of the GOI are COM.SUB.IN's offensive arm and is composed of the units diver teams. It is composed of 150-200 operators and cunducts operations near the coastline. GOI is divided into three specialized sections: UN.I.S-Unita Interveni Speciali (Special Intervention Unit-maritime counter-terrorism); Weapons unit (which handles the units heavy weapons); Special equipment unit.

GOS-Gruppo Operativo Subacquei (Underwater Operations Group):
GOS is COMSUBIN's diver unit. They are tasked with protecting Italian naval vessels, and facilities from attack by hostile forces, ensuring that the" Incursori" teams are properly trained to conduct undersea operations, providing support for divers onboard fleet ships, carrying out various undersea duties, conducting maritime search and rescue operations, experimenting with new equipment and develop new diving techniques.

GNS -Gruppo Navale Speciale (Special Naval Group): is intended to support COMSUBINoperations; it operates two naval support vessels that are used to transport COM.SUB.IN personnel and equipment.

Ufficio Studi (Study & Reseach Center) : a 'research/studies group' that is tasked with continuously searching for new equipment and weapons, evaluating equipment currently available on the market, to buy new equipment, modifing equipment already in service after receiving requests from operators in the field, studying new weapons, and communications systems for possible use by COM.SUB.IN.