It would also help if civil defence were civilian, not military (the civil defence organisations are civilian as far as I know in Spain and the UK, but in the US there's only the National Guard).
In a few countries such as Jordan and Singapore (see Singapore Civil Defence Force), civil defense is essentially the same organization as the fire brigade. In most countries however, civil defense is a government-managed, volunteer-staffed organization, separate from the fire brigade and the ambulance service. As the threat of Cold War eased, a number of such civil defense organizations have been disbanded or mothballed (as in the United Kingdom and the United States civil defense), while others have changed their focuses into providing rescue services after natural disasters (as for the State Emergency Service in Australia). However the ideals of Civil Defense have been brought back in the United States under FEMA's Citizens Corps and CERT.