 Led by Luigi Longo and Pietro Secchia, they were the largest of the partisan groups and suffered the highest number of losses.Members wore a red handkerchief around the neck with red stars on their hats.On 20 September 1943 in Milano, the military committee of PCI was formed and in October it became in the general command of the "Brigate d'assalto Garibaldi" (Garibaldi Assault Brigades) under the leadership of Longo and Secchia.