- 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.
It is better to be safe in other countries when it is difficult to survive with a family when the war will severely hamper the pace of global economic recovery. If during the war in the country the price of food grains imported and exported through this route is increasing. Due to the corona epidemic the purchasing power of people in many parts of the world has already decreased if the price of food increases again it will increase the crisis.