Men women and children lay prone on the Brussels pavements when a mock aerial bomb and gas attack was made on the city to test the defences - the citizens co-operated with the military authorities to make the attack as realistic as possible - gas masked Red Cross men rushed victims to first aid centres and fire fighters wearing gas masks concentrated their efforts on buildings set alight by the bombs - photo shows a child victim of the raid being rushed by gas masked Red Cross men to a first aid centre September 6th 1934