Anonymous
@74, as some posts above have already pointed out, it can be difficult to do. If you have suggestions, they are welcome but moving is not an option for everyone nor even always desirable. In medieval times, when the enemies came, everyone run to the castle, rose the draw bridge and sat there. Sometimes it worked out but many times it did not. Once you run out of supply, you were dead. If the enemy could throw fire over the walls, you were toasted.
There is strength in numbers but sometimes small groups are a better options.