On 9 June, divided into three groups, they attacked a convoy for the first time. A few days later on 12 June, they attacked another convoy between
Mazmet and
Les Martyrs causing important damage. On 29 June, near
Saissac, in a place called la Rouge, 7 German lorries with 30 men arriving from
Lezignan were ambushed, eight German soldiers were killed, three were wounded; two of the
maquisards were killed. On 14 July a group of 400 men marched defiantly through the little town of Revel, singing
La Marseillaise before returning to the mountains; five days later on 19 July the Corps-franc attacked another German convoy, at
Pont d'Alzau on Route Nationale 113, inflicting heavy casualties and taking prisoners. On 20 July, near
Alzau, at the intersection known as , 15 members of the C.F.M.N attacked and stopped
Panzers with grenades, fighting them for over two and a half hours. As soon as they found out the location of the group, on 20 July 1944, the Germans launched an air assault in the early morning, bombarding the 5 camps, many were killed including one of the Commanders, Henri Sévenet. Right after the bombardment, the
11th Panzer Division was sent to eliminate the group together with a German army brigade of 1,500 men. The C.F.M.N was pushed back and separated into smaller units. On 23 August 1944, nine maquisards were killed near Pont de la Mouline. In September most of the fighters joined the
First Army in the
liberation of France. == Honours ==