To quote myself, there’s no “ethical certainty” when (hypothetically) travelling back in time. You can never know the untold devastation you will introduce or avoid by making major or even minor changes.
I love time travel stories but most of them really skip over some of the more complex issues.
Which reminds me of a fairly low budget movie that was actually not bad, Time Trap. Check it out if you can find it.
Plot twist. Hamas terrorists hacked into IDF infrastructure and dropped the bombs on themselves to make the IDF look bad.
Either that or they’ll find that elements of the IDF are Hamas.