From The Rainbow (#127), by Rabbi Avigdor Miller
Q: What explanation can be offered for the advent of nuclear weapons?
A: Hakadosh Baruch Hu wants to let us know we don’t have Him stymied. Although He has already committed to a promise He won’t bring a mabul, a flood of water, but the gemara says He can chas v’shalom bring a flood of fire. Now we might forget that. We might think it’s only a bluff. And therefore He gives us a little intimation.
We might think it’s only a bluff. So He gives us a little intimation.
So we hope that these nuclear weapons will always be used only to threaten each other so the nations will be afraid to go into war, and let’s hope it remains that way. But in the meantime we learn that lesson that they’re around, they are around. Which means we have to be better, we have to learn more Torah and practice more Torah, and remember Hakadosh Baruch Hu. And among all the good things we have to enjoy the fact that we don’t have the nuclear age practiced right now. It’s not being practiced. It’s only a laboratory, it’s only an army station. It’s not being practiced. And we enjoy life as long as we’re able to enjoy it.
Who knows if our children will be able to be as happy as we are? Because once they start pressing the wrong buttons, it will be a different kind of world. So right now let’s enjoy it and be happy.