Here is a German news article I found on the subject.
So the government wants to respond in case of war
What if tomorrow would be war? Citizens should reinvest inventories. The protection of government bodies against armed attacks, in a concept of the federal government back to the topic. 08/21/2016 from THOMAS GUTSCHKER
I have copied the article here, in case it is taken down.
The federal government wants to encourage the population again for stockpiling, so that they in the event of major disasters or of armed attack temporarily can take care of himself. "The population is stopped, hold up a personal supply of food of ten days", according to the "civil defense concept", which is to decide the Cabinet on Wednesday. The reports the Frankfurter Allgemeine Sonntagszeitung (FAS), citing the text, which has been elaborated by the Ministry of the Interior and the newspaper was present.
The federal government also penetrates to an adequate supply of drinking water. "The population should be encouraged by appropriate means, to own / first aid reproach two liters of water per person per day in not harmful quality to installation state individual measures for a period of five days," it said in the concept.
This is the first strategy of civil defense since the end of the Cold War. She had been in 2012 commissioned by the Budget Committee of the Bundestag and was parallel to the White Paper on the security policy. As it states in the 69-page concept, "that an attack on the territory of Germany, which requires a conventional defense, play" was. But "nevertheless to such sufficiently prepared not fundamentally excluded for the future life-threatening development" requires security screening.
Existing arrangements wholly inadequate -
In the concept of the necessary fields and challenges are named. In an emergency, the population should be able to protect themselves before government measures start to ensure an adequate supply of food, water, energy and cash. Discusses also is the need for a reliable alarm system, a hardening of buildings and sufficient capacity in the health system. The civilian support of the armed forces to be again a priority; including modifications to the traffic steering when the Bundeswehr must relocate combat units.
An important issue is also the self-protection of the state bodies. "Precautions are the case of the task of the service office to meet in order to relocate the performance of duties of a public authority to another, sheltered place (Emergency Seat) can", according to the concept. As the FAS further reports came out in an internal survey that the recent measures are entirely inadequate. The issue will now be discussed by the Federal Security Council therefore.