- are there any business that I can do during a period of war so as to sustain my family?
It all depends on the conditions because in a war situation sometimes there is no other choice but only to think between life and death. If your country experiences a prolonged war, it would be better for you to leave your country and go to another, safer country so that you and your family can survive. If you don't leave a country that is in a state of war then it is very difficult to survive.