Based on the latest developments following the large-scale joint US-Israel military strike against Iran on February 28, 2026, and Iran’s subsequent retaliatory operation against US military bases in the Middle East, codenamed “Truthful Promise 4,” there are two main potential trajectories for the future of the conflict: limited war and full-scale war. The following outlines the multi-layered consequences and far-reaching impacts of both scenarios, based on publicly available information and expert analysis.
Consequences and Impacts of a Limited War
If the conflict is contained within the scope of “surgical strikes” and limited retaliation—where both sides primarily engage in tit-for-tat attacks using missiles and drones, avoiding ground invasions and full-scale mobilization—the impact, while relatively controllable, would still be profound.
1. Military and Security Dimensions: Mutual Strikes on Military Facilities Become the Norm, Regional “Shadow War” Goes Overt.
The initial US-Israeli strikes aimed to destroy Iran’s nuclear facilities, missile industry, and key military command nodes. Iran’s retaliation has precisely targeted US military presence in the Middle East, with confirmed strikes on multiple locations including Al Udeid Air Base in Qatar, the US Fifth Fleet Headquarters in Bahrain, Al Dhafra Air Base in the UAE, and Ali Al Salem Air Base in Kuwait. In this mode, both sides may become locked in a “strike-retaliate” cycle: Iran continuing to target US and Israeli assets with missiles and proxy forces; the US and Israel conducting further air raids on Iranian military sites. Regional security will remain at a persistently high alert level, but the risk of full-scale ground warfare and large-scale attacks on civilian infrastructure would be comparatively low.
2. Political and Diplomatic Dimensions: Immense Pressure for International Mediation, Regional States Caught in a Dilemma.
The conflict will exacerbate divisions within the UN Security Council. Regional states face severe tests: nations hosting US bases, like Qatar and the UAE, have already closed their airspace and activated air defense systems. Relying on the US for security while unwilling to become outright enemies of Iran, they find themselves in a deeply passive diplomatic position. The international community will engage in emergency mediation. However, given that US President Donald Trump has explicitly stated the goal of the operation is to “destroy Iran’s missile industry” and called on Iranians to “take over their government,” while Iran vows to strike “all US military bases and interests,” reaching a ceasefire agreement in the short term appears extremely difficult.
3. Economic and Market Dimensions: Energy Supply Disrupted, Market Volatility Increases but No Collapse.
As long as the Strait of Hormuz remains open, a catastrophic interruption in global oil supply is avoidable. However, attacks on US bases in the Gulf region and the closure of regional airspace will inevitably disrupt oil production and shipping, causing international oil prices (such as Brent crude) to fluctuate widely at elevated levels of $80-$100 per barrel. Global stock markets, particularly sectors like aviation, insurance, and industries reliant on Middle Eastern supply chains, will face pressure, but the global financial system would likely avoid a systemic shock.
4. Regional Order Dimension: US Alliance System Under Strain, Iran Demonstrates Deterrence Capability.
Iran’s ability to conduct effective strikes on US bases located in multiple allied nations demonstrates significant asymmetric warfare capability and resolve to its regional rivals. While the US alliance system would not collapse, countries like Bahrain and Qatar, having experienced direct security risks, may exhibit greater hesitation in cooperating with future US policy on Iran, testing the stability of the US security architecture in the region.
Consequences and Impacts of a Full-Scale War
If the conflict spirals out of control due to miscalculation or escalation by either side—for example, an Iranian strike causing major US casualties, or the US and Israel deciding to expand the war’s scope to topple the Iranian regime—escalating into a full-scale US-Iran war, the consequences would be catastrophic and global.
1. Military and Security Dimensions: Full-Scale Regional War Erupts, Extreme Risk of Using Unconventional Weapons.
War would rapidly escalate beyond tit-for-tat base strikes. Iran could unleash its entire arsenal of missiles and drones in saturation attacks on Israeli cities and all US targets across the Middle East. Its proxy forces would launch simultaneous large-scale offensives across multiple fronts (Lebanon, Syria, Iraq, Yemen). The most dangerous scenario involves Iranian nuclear facilities being struck during the crossfire, causing radioactive material release, or Iran, facing an existential threat to its regime, considering the use of unconventional means like chemical weapons, resulting in a humanitarian and environmental catastrophe transcending borders.
2. Political and Diplomatic Dimensions: UN Framework Becomes Ineffective, World Moves Towards Bloc Confrontation.
Full-scale war would lead to complete paralysis of the UN Security Council. Major powers would be forced to take clear sides: Russia might provide Iran with advanced weapons and intelligence support; European nations would face a schismatic choice between cutting off energy supplies and siding with their security ally, the US. A power vacuum would emerge in the Middle East. Regional powers like Turkey, Saudi Arabia, and Egypt might intervene under the guise of “self-defense” or “stabilization,” triggering a new round of proxy wars and potential territorial disputes, leading to the complete collapse of regional order.
3. Economic and Livelihood Dimensions: Global Energy Crisis and “Stagflation” Shock, Supply Chains Completely Fracture.
The core economic impact of a full-scale war stems from the military closure or complete interruption of shipping through the Strait of Hormuz. The Strait handles approximately 30% of the world’s seaborne oil trade. Its closure could send international oil prices soaring above $150 per barrel. This would trigger global “stagflation” (stagnant economic growth combined with high inflation): inflation rates would spike, and global economic growth would slow dramatically. Asian manufacturing nations heavily reliant on Middle Eastern energy would face severe shortages and industrial shutdowns. The complete interruption of Red Sea shipping would further devastate global supply chains, leading to a contraction in global trade and soaring consumer goods prices.
4. Global Order Dimension: US Hegemony and Credibility Damaged, Multi-Polarization Accelerates Amidst Chaos.
A prolonged, costly, and unpredictable full-scale war would severely deplete US national strength and military resources. If the US becomes mired in another “Middle Eastern quagmire,” its global credibility and leadership would suffer a catastrophic blow. To ensure energy security, European and Asian nations would be forced to accelerate their energy transition and seek alternative supplies, potentially permanently weakening the petrodollar system. Simultaneously, the trend of deglobalization would intensify, as nations retreat into more closed, regionalized economic and security blocs for self-preservation. The post-WWII international order would face fundamental restructuring.
In conclusion, a limited war would plunge the Middle East into a prolonged, high-intensity state of “cold confrontation” punctuated by periodic “hot conflicts.” A full-scale war, however, could ignite a deep crisis that reshapes the global political, economic, and security landscape. Currently, with Iran having initiated retaliation and regional states being drawn in, the situation stands at a dangerous precipice, potentially sliding towards a full-scale conflagration.