Shelter; Heating (e.g. natural gas, fuel oil, district heating); Agriculture, food production and distribution; Water supply (drinking water, waste water/sewage, stemming of surface water (e.g. dikes and sluices)); Public health (hospitals, ambulances); Transportation systems (fuel supply, railway network, airports, harbours, inland shipping); Security services (police, military). Electricity generation, transmission and distribution; (e.g. natural gas, fuel oil, coal, nuclear power) Renewable energy, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Telecommunication; coordination for successful operations Economic sector; Goods and services and financial services (banking, clearing);