I think during War there's no room for fun, jokes, businesses and even happiness it's rather a period of sadness, fear, death, disasters and many More so definitely the implications as really affected alot of sectors ranging from 100 to 0 leaving everyone with a moment of silent and observations, so for survival tips you should please stay at your closest or safety place of refuge and be patient enough with everything, then for businesses I think there's no room for that I must say because everyone is fighting or looking for safety other than running business during that period.