The "nations" will be "destroyed", but "Jacob"/Israel, will only be "chastened justly". (Jeremiah 30:11). Israeli building codes have required all citizens to have quick access to bomb shelters. Israel is not regarded as a "nation" (Gentile nations) which comes against Jerusalem (Zechariah 14).
The nuclear missiles will make entire cities and military areas disappear. But it is not the missiles that destroys Israel. It is the massive tectonic plate movement of the East African Rift that is affected by the power of the nukes shaking the ground with massive concussion that splits Israel apart. This earthquake will take down buildings far from the chasm in Israel it creates. It will be the worst Earthquake experienced in the world, a pangean type of land shift, and nations around Israel will experience the structural damage it creates.. The west part of Jordan will fall in the sea according to scripture because of the land shift. Mountains will fall. But the true terror is along that African Rift plate are super volcanos that will erupt making the sky as black as sackcloth and no one on Earth can do anything about it as that smoke will travel in the jet stream.
Radiation will travel the globe and is that first death. The smoke of super volcanoes, the 2nd and final death destroys the world because it causes Nuclear Winter. The oceans freeze so the islands "flee" they are no longer islands because if a person was alive ( they will not be) they could walk on the ice to every place that had been an island. Planet Earth becomes a ball of ice with no life on it.
We are told about this Nuclear Winter in Job and Peter references this tragic event.
2 Peter 3:7
But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
The "fire is the eruption of super volcanoes that would not have erupted if the judgement of men against each other as "ungodly" had never happened. WAR with thermonuclear weapons causes the super volcano event. God has nothing to do with it because the Word of God taught by Jesus to never have this war start is love your enemy as much as you love yourself. Everyone has the God given right to Life and Liberty.
JOB 21:30
That the wicked is reserved to the day of destruction? they shall be brought forth to the day of wrath." This wrath is the wrath of men against each other in nuclear world war
The Son of man is the expected military Christ is supposed to completely destroy the enemy and he uses thermonuclear weapons to do it.
Job 25:6 How much less man, that is a worm? and the SON of MAN, which IS a worm?." The worm in the gourd that hangs above Jonah as he is imprisoned after war is Radiation that destroys the ecology of the Earth. Man has to hide underground and can do nothing to stop the increasing radiation above him.
Job 38:22
Hast thou entered into the treasures of the snow? or hast thou seen the treasures of the hail,
Which I have reserved against the time of trouble, against the day of battle and war?"
COLD is what stops nuclear meltdown. Nuclear Winter caused by war stops battle and war. After the ice melts far into the future all nuclear power plants on Earth are in meltdown releasing Radiation over the Earth forever. God gave man an Eden/Earth full of life and man turns it into Hell where there is no life.
Job 38:29
Out of whose womb came the ice? and the hoary frost of heaven, who hath gendered it?"
Man is the cause, as he gendered the birth of Nuclear Winter that ends WW3 causing the End of Days for all life on Earth.