Its been proven that lemmings don't commit mass suicide. The video that shows them doing that was actually set up by a Cinematographer James R. Simon when he was filming White Wilderness in Alberta for Walt Disney. Every thing has a Canadian Connection.
Sheep would probably be a better animal to use.
The federal government will continue to "exist" for a long time. The President, his staff, Congress, JCS, etc have installations they'll run to the second someone confirms the dead can walk. However, its capacity to provide resources and affect the outcome of the crisis will evaporate rather quickly.
It could take weeks for government to realize what is happening decide on a course of action. Hunting down zombies probably won't be in their initial response. Instead, they'll try to maintain law & order by insisting civilians place themselves under the direction and protection of government agencies. People who decide to defend their property and family will be seen as a threat, and be met with deadly force. Of course, soldiers probably won't support such a strategy and will AWOL, which would really screw over those who seek shelter and protection from government.
By the time all the dirt settles, the zombies will be in control, and humans will exists in small bands. The president and Congress will be in bunkers enjoying air condition and broadcasting speeches and orders to survivors who could care less.
thats when if it ever happened you use what you can find. hell if you find a fire arm on the ground take it and make sure you reserve ammunition. if you can't find one then you have to get creative. hell a knife would do if you know how to use it. like if you can get close enough try ramming in the temple. see being creative is always smart. but i know some Koreans that kick some serious ass. Koreans are awesome.
Yay A Fellow Norwegian.
Imo The Norwegian Government alone wouldn't last more than perhaps 6 months.
But Depending on where the threat originates and how quickly it spreads i can foresee that the Scandinavian countries would work in unison, Denmark possibly abandoning its land and evac the c8ivilians to other Scandinavian Countries and seal of the bridges that connect Denmark and Sweden. Or just block off the area on the map leading to germany.
Finland would block off the areas that leads to Russia, preferably with the aid of Russia itself, with this in place all these countries survival rate just increased.
My guess is 3-4 years before resources( food) mainly will become a concern if no steps are taken.