[6] Modern Grenadiers were formed in the early 1940s, originating from the "Infantry Pioneers" trained by Chief instructor Matthias Brunner, the commander of a riflemen company who developed a close combat technique in the shooting schools of Walenstadt.

[7] In 1943, General Henri Guisan, convinced of the necessity of shock troops specially trained for close combat, decided to form a similar company in each of the 37 infantry regiments of the army.

[8] After the war, the makeshift training grounds were relocated twice, first to Losone, but after complains about having a military installation in a touristic area they were moved again to Isone, where they remain to this day.

[9] In 1968, to answer the necessity of a specific training for combat and deployment in difficult terrains, units of Mountain Grenadiers were created.

Those who do not meet the physical, psychological and social expectations usually remain in the Special Force Unit serving as a support staff.