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Defence & Security23 Oct 2026 · about 6 min

Gulf nations brace for possible return to all-out war between US and Iran

The brief

Several signals suggest that Washington and Israel may be preparing for renewed strikes on Iran. The article links the concern to military deployments, official warnings, reported targeting plans, and high alert levels in Israel and Iran. The timing is politically sensitive, coming before Israeli and US elections. The clearest military sign is the reported US buildup in the Gulf. A third aircraft carrier and thousands of troops are joining what the article calls the largest US naval and air force presence in the Middle East since 2003. US officials reportedly developed plans targeting energy infrastructure, nuclear facilities, and missile and drone arsenals. Diplomatic warnings add to the concern. The State Department ordered non-essential employees and families to leave Saudi Arabia, citing possible rapid escalation. Washington also issued a regional alert covering 12 countries. Iran says it has reorganized defenses and is certain another US-Israeli attack will come.

01

What signs described in the article suggest that renewed US-Israeli attacks on Iran may be under preparation?

Several signals suggest that Washington and Israel may be preparing for renewed strikes on Iran. The article links the concern to military deployments, official warnings, reported targeting plans, and high alert levels in Israel and Iran. The timing is politically sensitive, coming before Israeli and US elections.

The clearest military sign is the reported US buildup in the Gulf. A third aircraft carrier and thousands of troops are joining what the article calls the largest US naval and air force presence in the Middle East since 2003. US officials reportedly developed plans targeting energy infrastructure, nuclear facilities, and missile and drone arsenals.

Diplomatic warnings add to the concern. The State Department ordered non-essential employees and families to leave Saudi Arabia, citing possible rapid escalation. Washington also issued a regional alert covering 12 countries. Iran says it has reorganized defenses and is certain another US-Israeli attack will come.

02

What is a State Department ordered departure, and how is it different from a general travel warning or evacuation?

A State Department ordered departure is a formal measure directing non-emergency US government employees and their family members to leave a country or area because conditions may worsen. It applies to specified personnel, not automatically to all US citizens. The article says the order covered Saudi Arabia only.

A general travel warning or alert gives information about risks and advises citizens to reconsider or avoid travel. It does not necessarily require people already there to leave. An evacuation is broader: it usually means organized assistance or instructions for a larger population to depart, often during an immediate emergency. These definitions reflect standard government usage; the article itself mainly describes the Saudi order.

The distinction mattered because reports claimed families were leaving several Gulf countries. State Department spokesperson Tommy Pigott called those reports inaccurate. He said the departure order resulted from growing Houthi attacks and applied only in Saudi Arabia.

03

How large is the reported US military buildup in the Gulf, and what does the presence of a third aircraft carrier and thousands of troops indicate?

The article does not give a precise total for US forces in the Gulf. It reports a massive buildup involving more military assets, including a third aircraft carrier and thousands of troops. Together, these forces would expand Washington’s ability to conduct air, naval, defensive, and logistical operations.

The comparison is striking. The article calls this the largest US naval and air force presence in the Middle East since the 2003 invasion of Iraq. A third carrier adds another major platform to the force already in the region. Thousands of additional troops can support operations, protect installations, maintain equipment, and respond to attacks.

This presence does not prove that an attack will occur. It does show that the United States is positioning substantial capabilities near Iran while reported strike plans are being discussed. The buildup therefore increases concern about imminent escalation and raises the stakes for Gulf countries.

04

Why could Gulf countries be heavily affected by a US-Iran war even if the main strikes took place inside Iran?

Gulf countries could be drawn into the conflict because US military forces, bases, interests, and infrastructure are located across the region. Iran has warned that any new attack would trigger a devastating response against US interests and civilian infrastructure throughout the Gulf and wider Middle East.

The article says Iran expects its response to be worse and longer than previous attacks on Gulf nations. That could place Saudi Arabia, the UAE, Qatar, Bahrain, Kuwait, Oman, and nearby states under pressure, even if US and Israeli strikes focused on Iranian facilities. The US has already warned citizens in 12 regional countries about possible attacks on US interests.

The immediate consequences could include attacks, disrupted transport, economic damage, and civilian danger. The article also reports a US departure order in Saudi Arabia because hostilities could escalate rapidly. Gulf governments therefore face risks from retaliation, military deployments, and instability around vital regional routes.

05

What is the Strait of Hormuz, and why is control of it strategically important during a conflict with Iran?

The Strait of Hormuz is a narrow maritime passage connecting the Persian Gulf with the Gulf of Oman and the wider ocean. It is strategically important because ships carrying oil and other goods use it to enter or leave the Gulf. This basic geographic definition is established knowledge; the article specifically refers to reopening the strait.

According to reported US plans, strikes could target Iranian energy infrastructure, nuclear facilities, and missile and drone arsenals. Their stated objective would be to push Iran into a deal ending the war and reopening the Strait of Hormuz. That wording shows the strait is both a military pressure point and an economic lifeline.

If Iran or the fighting made passage unsafe, shipping could slow, stop, or require protection. Gulf states and international markets would face uncertainty. The article does not say that the strait was already closed, but it presents reopening it as a central possible outcome of a future deal.

06

How could attacks on oil facilities, tankers, or the Strait of Hormuz affect energy prices and economies around the world?

Attacks on oil facilities, tankers, or the Strait of Hormuz could affect economies far beyond the battlefield. They could damage production, interrupt shipments, or make transport more dangerous. When buyers fear that less oil will reach markets, prices can rise even before supplies are actually reduced. This is established economic knowledge; the article gives no numerical forecast.

The mechanism is straightforward. A strike or threat can force ships to delay, reroute, or pay more for security and insurance. Energy companies may pass those costs to consumers. Higher fuel prices can then raise transport, food, and manufacturing costs. Oil-importing economies would feel the pressure especially quickly.

The article already connects war-linked high prices with voter anger ahead of US midterm elections. A larger disruption could intensify that pressure and harm Gulf economies as well. However, the article does not state how long any disruption would last or how high prices might go.

07

What is deterrence, and why can threats of devastating retaliation sometimes prevent war but also make a crisis more dangerous?

Deterrence is the strategy of discouraging an attack by showing that retaliation would be severe. A government tries to convince an opponent that starting a conflict would cost more than any possible gain. This definition is established knowledge, while the article shows Iran using such warnings during the crisis.

Iranian officials and the IRGC say any new attack would bring a devastating response against US interests and civilian infrastructure across the region. The article says Iran expects that response to be worse and longer than previous attacks. Such threats may make US and Israeli leaders reconsider an attack because the risks would spread beyond Iran.

But deterrence can also make a crisis more dangerous. Public threats can narrow leaders’ room to compromise and encourage military preparations. Each side may interpret the other’s buildup as proof that war is coming. With armies on high alert and US forces expanding in the Gulf, miscalculation could trigger the conflict deterrence was meant to prevent.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.

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