>>17426531 shelter from exposure some ready shelter in bag and means to build permanent shelter
2 water 72h ready supply in a bug out bag and means to get drinking water long term
3 fire (always have several backup options! have some waterproofed matches if all else fails they are consumables but you can keep ember alive for a good while) also have a metal box to make your charred punkwood combined with flint+steel or ferro rod good fire-starter that is renewable for a lifetime
4 means to get prepare and cook food this is the most important long term thing a good metal pot that you can boil water cook soup and even fry things in
5 salt either have it or know where to find salt water you can boil
