 The members of the National Guard from working-class neighbourhoods became the main armed force of the Commune.As the Germans surrounded the city, radical groups saw that the Government of National Defence had few soldiers to defend itself, and launched the first demonstrations against it.On 19 September, National Guard units from the main working-class neighbourhoods—Belleville, Menilmontant, La Villette, Montrouge, the Faubourg Saint-Antoine, and the Faubourg du Temple—marched to the centre of the city and demanded that a new government, a Commune, be elected.