I think that no method will help if fate is destined to die. You just have to put up with it and not think about the war. It will calm your nerves.
I don't quite agree with you. If you pass survival courses you will have more chances to survive. In the army, always young and inexperienced fighters try to stay close to the experienced fighters. It always gives them a better chance. But fate of course was not fooled.
Do you think that by fighting on either side, you will have chances of survival? It seems to me that if the third world war begins, then it surely will not leave any chance of survival for anyone on this planet.