Why? I dont live there and war can break out?
I how to visit jerusalem ashdod north and tel aviv
You can never know when war will break out... and that's true anywhere. Nobody had any clue 9/11 would happen here either (well except chaim who predicted it for years but you know what I mean).
Plenty will visit Israel and will be in no different situation than most civilians there who live every day not knowing if there will be war. I think its rare that a real war breaks out and even then if you're a civilian you can travel to calm areas.
There was war last year but it was confined to aza. I doubt you're planning to go to aza or lebanon.