This group focuses on surviving brief encounters of violent activity, including personal protection and its legal ramifications, danger awareness, John Boyd's cycle (also known as the OODA loop—observe, orient, decide and act), martial arts, self-defense tactics and tools (both lethal and non-lethal). These survivalist tactics are often firearm-oriented, in order to ensure a method of defense against attackers or home invasion.
To me, the best option is to store emergency food. How much? If you have none, store enough for a few days. If you have enough for a few days, get enough for a week. How much you store depends on what time frame you think you're at risk for having to be completely independent. The early settlers of the southwest liked to store enough food for a whole year and still do to this day!