There is a war with Iran that is predicted to come that results in the complete destruction of Iran. It is discussed in Ezekiel 38, 39. HOWEVER!, it is described as Iran (Persia) attacking Israel after Israel is living peacefully, having recovered from a war itself, and living without walls or gates.
After many days you will be called to arms. In future years you will invade a land that has recovered from war, whose people were gathered from many nations to the mountains of Israel, which had long been desolate. They had been brought out from the nations, and now all of them live in safety.
You could hardly describe Israel today as living peacefully. They are constantly threatened by suicide bombers, rockets, Hezbollah, Syria, etc. The Israeli government has built fences on her northern border, fences along the green line that separates the Palestinian areas from Israel proper, and fences around the Jewish settlements within Palestinian areas. This is not an Israel described in Exekiel 38. Also, neither Egypt, Jordan, Syria, Lebanon or the Palestinians are described to attack Israel along with Iran. The absence of these nations along with the peace and safety Israel enjoys could be explained in the verse above: "you will invade a land that has recovered from war".
Does Israel go to war BEFORE fighting Iran??
“O God, do not keep silent; be not quiet, O God, be not still. See how your enemies are astir, how your foes rear their heads. With cunning they conspire against your people; they plot against those you cherish. ‘Come,’ they say, ‘let us destroy them as a nation, that the name of Israel be remembered no more.’ With one mind they plot together; they form an alliance against you—the tents of Edom and the Ishmaelites, of Moab and the Hagrites, Gebal, Ammon and Amalek, Philistia, with the people of Tyre. Even Assyria has joined them to lend strength to the descendants of Lot. Selah
Do to them as you did to Midian, as you did to Sisera and Jabin at the river Kishon, who perished at Endor and became like refuse on the ground. Make their nobles like Oreb and Zeeb, all their princes like Zebah and Zalmunna, who said, ‘Let us take possession of the pasturelands of God.’
Make them like tumbleweed, O my God, like chaff before the wind. As fire consumes the forest or a flame sets the mountains ablaze, so pursue them with your tempest and terrify them with your storm. Cover their faces with shame so that men will seek your name, O LORD. May they ever be ashamed and dismayed; may they perish in disgrace. Let them know that you, whose name is the LORD—that you alone are the Most High over all the earth.”
The nations described correspond to modern day Palestinians, Lebanon, Syria and Jordan. Notice how in the prayer of the Psalmist, he asks for them to be made like a tumbleweed and chaff in the wind. This comes up again in Isaiah.
“An oracle concerning Damascus: ‘See, Damascus will no longer be a city but will become a heap of ruins. The cities of Aroer will be deserted and left to flocks, which will lie down, with no one to make them afraid. The fortified city will disappear from Ephraim, and royal power from Damascus; the remnant of Aram will be like the glory of the Israelites,’ declares the LORD Almighty. ‘In that day the glory of Jacob will fade; the fat of his body will waste away. It will be as when a reaper gathers the standing grain and harvests the grain with his arm—as when a man gleans heads of grain in the Valley of Rephaim. Yet some gleanings will remain, as when an olive tree is beaten, leaving two or three olives on the topmost branches, four or five on the fruitful boughs,’ declares the LORD, the God of Israel.
In that day men will look to their Maker and turn their eyes to the Holy One of Israel. They will not look to the altars, the work of their hands, and they will have no regard for the Asherah poles and the incense altars their fingers have made. In that day their strong cities, which they left because of the Israelites, will be like places abandoned to thickets and undergrowth. And all will be desolation.
You have forgotten God your Savior; you have not remembered the Rock, your fortress. Therefore, though you set out the finest plants and plant imported vines, though on the day you set them out, you make them grow, and on the morning when you plant them, you bring them to bud, yet the harvest will be as nothing in the day of disease and incurable pain.
Oh, the raging of many nations—they rage like the raging sea! Oh, the uproar of the peoples—they roar like the roaring of great waters! Although the peoples roar like the roar of surging waters, when he rebukes them they flee far away, driven before the wind like chaff on the hills, like tumbleweed before a gale. In the evening, sudden terror! Before the morning, they are gone! This is the portion of those who loot us, the lot of those who plunder us.”
The ancient tribe of Ephraim was given the land that is now occupied by the Palestinians. Aram is the Hebrew name for Syria. Aroer is in Jordan. So the names might be different than in Psalms, but the areas described are the same!
The city of Damascus is destroyed in one evening, most likely from a nuclear bomb from Israel. Those areas not completely destroyed have a spiritual revival and turn to God. This could be the reason these nations aren't included in the following war described in Ezekiel 38. And could also be the reason Israel is living peacefully for a time, having just recovered from war.
So in conclusion, don't look for a war with Iran in the near future. At least one of any significance. There might be some precision strikes, but no regime change or full on WW3. Not yet... First look for a war with Syria, Lebanon, the Palestinians and portions of Jordan.