The plan, which makes civilian backing of troops a priority while boosting the resilience of buildings and increasing capacity in the healthcare system, is due to be adopted by the government Wednesday, according to the Frankfurter Allgemeine Zeitung (FAZ) daily.
Contacted by AFP, an interior ministry spokesman confirmed that the cabinet was due to adopt a civil defence strategy but declined details about the concept or comment on the newspaper report.
"The population will be encouraged to stockpile food for ten days," it said, adding that five days' worth of water- at an estimated two litres per person per day -should also be set aside.
Haunted by its Nazi past, Europe's most populous country has for decades been particularly cautious about defence issues.
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But this year it set out a new military roadmap outlining Germany's ambition to assume a bigger defence role abroad, within the frameworks of NATO and the European Union.
The defence ministry is looking at training the military to respond to major terror assaults, while Interior Minister Thomas de Maiziere last week announced tough new anti-terror measures including a controversial proposal to strip jihadist fighters of their German nationality.
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