To amplify on Flight-ER-Doc's excellent comments.

Having stockpile for myself and a retreat is not enough. Having some buddies similarly situated is also insufficient.

I really believe in going the global guerrillas resilient communities concept one better. Our unit needs to be able to defend that community, because only a community can create enough of an economy to be self sufficient for survival and produce goods for trade / sell. Thus, the country is rebuilt from the community level, and freedom and liberty better assured by a government responsive to its citizens.