Trump says U.S. military has begun major combat operations in Iran

Trump says U.S. military has begun major combat operations in Iran

Former U.S. President Donald Trump announced that the U.S. military has commenced major combat operations in Iran, following earlier reports of joint Israeli and U.S. attacks on Iranian targets. Israeli Defense Minister Israel Katz stated the attacks were conducted "to remove threats." Explosions were reported in Tehran and other Iranian cities, with smoke visible in the capital. The developments come amidst heightened tensions in the Middle East, with Tehran promising retaliation and international warnings of potential further escalation.

STÆR | ANALYTICS

Context & What Changed

The recent announcement by former U.S. President Donald Trump, confirming the commencement of “major combat operations” by the U.S. military in Iran, marks a significant escalation of long-standing geopolitical tensions in the Middle East. This development follows reports of joint Israeli and U.S. strikes against Iranian targets, with Israel’s Defense Minister Israel Katz stating the actions were taken “to remove threats” (source: cnbc.com). This shift from a state of simmering conflict and proxy engagements to direct, large-scale military action fundamentally alters the regional security landscape and has profound implications for global stability, energy markets, and international relations. Prior to this, the relationship between the U.S., Israel, and Iran has been characterized by a complex interplay of diplomatic efforts, economic sanctions, cyber warfare, and proxy conflicts across the region, including in Iraq, Syria, Lebanon, and Yemen (source: state.gov, idf.il). Iran’s nuclear program, its support for various non-state actors, and its ballistic missile capabilities have been central points of contention. The immediate change is the transition from indirect confrontation to overt military engagement involving a major global power, signaling a new and potentially highly volatile phase in the region.

Stakeholders

The primary stakeholders in this escalating conflict are numerous and diverse, each with distinct interests and potential impacts:

United States: As a direct participant in “major combat operations,” the U.S. is a central actor. Its interests include regional stability, protecting allies (particularly Israel), counter-terrorism, ensuring freedom of navigation, and maintaining its global strategic position. The U.S. faces significant economic and human costs, potential domestic political ramifications, and the challenge of managing international alliances and rivalries.

Israel: Having reportedly initiated strikes alongside the U.S., Israel’s primary interest is national security, particularly concerning Iran’s nuclear ambitions, ballistic missile program, and regional influence via proxies (source: idf.il). Israel seeks to neutralize perceived threats, but faces risks of direct retaliation, regional destabilization, and international condemnation.

Iran: As the target of these operations, Iran’s immediate interests are national defense, maintaining sovereignty, and demonstrating resilience. Its strategic goals include preserving its regional influence, advancing its nuclear and missile programs, and resisting external pressures. Iran faces severe economic disruption, potential infrastructure damage, and significant human costs, alongside the challenge of formulating a proportionate response without triggering further catastrophic escalation.

Regional Allies and Adversaries: Countries like Saudi Arabia, the United Arab Emirates (UAE), and other Gulf Cooperation Council (GCC) states are deeply invested due to their geographic proximity, energy exports, and security concerns regarding Iranian influence. They face risks of spillover conflict, disruption to oil production and shipping, and increased refugee flows. Countries like Iraq, Syria, and Lebanon, already fragile, could become further destabilized as battlegrounds for proxy forces. Yemen, where Iran supports Houthi rebels, could see intensified conflict.

Global Powers (Russia, China, European Union): These actors have significant economic and strategic interests in the Middle East. Russia and China, with their own relationships with Iran, may seek to leverage the situation for geopolitical advantage, potentially complicating de-escalation efforts or providing support to Iran. The European Union is highly dependent on Middle Eastern energy supplies and faces potential refugee crises and economic fallout, driving its interest in diplomatic resolution and de-escalation.

United Nations and International Organizations: These bodies will be crucial for diplomatic efforts, humanitarian aid, and potential peacekeeping. Their capacity to mediate and enforce international law will be severely tested.

Energy Consumers and Producers: Global energy markets are highly sensitive to Middle East instability. Major oil and gas producers (e.g., OPEC+ members) and consumers worldwide will be impacted by price volatility and supply disruptions (source: iea.org, opec.org).

Shipping and Aviation Industries: The Strait of Hormuz is a critical choke point for global oil shipments (source: eia.gov). Any disruption or perceived threat will significantly impact shipping routes, insurance premiums, and global trade. Aviation routes over the Middle East could be restricted or deemed unsafe, affecting global travel and logistics.

Financial Markets: Global stock markets, bond markets, and currency exchanges will react to uncertainty, increasing volatility and potentially triggering capital flight from riskier assets.

Evidence & Data

The core evidence for this analysis stems directly from the provided news items, which confirm the initiation of military action and the involvement of both Israel and the U.S. against Iran. Specific verifiable facts include:

Direct Military Action: Trump’s statement confirms “major combat operations” by the U.S. military in Iran (source: cnbc.com). This is corroborated by reports of joint Israeli and U.S. attacks (source: france24.com, theguardian.com).

Israeli Rationale: Israeli Defense Minister Israel Katz cited the objective as “to remove threats” (source: cnbc.com).

Impact in Iran: Explosions were heard in Tehran and other Iranian cities, with video showing smoke rising in the capital (source: aljazeera.com).

Iranian Response: Tehran has promised retaliation (source: france24.com).

International Warnings: Australia’s Department of Foreign Affairs warned of increased risk of “further escalation” and flight cancellations in the region (source: theguardian.com).

Beyond the immediate catalog, well-established public facts provide essential context:

Strait of Hormuz: This narrow waterway, bordering Iran, is a critical global energy choke point. Approximately 20% of the world's petroleum liquids, or about 21 million barrels per day, passed through the Strait of Hormuz in 2022 (source: eia.gov). Its closure or significant disruption would have immediate and severe global economic consequences.

Global Oil Market Sensitivity: Historical events, such as the 1973 oil crisis or the 1990 Iraqi invasion of Kuwait, demonstrate the profound impact of Middle East instability on global oil prices and supply (source: iea.org, opec.org, historical market data).

Iran’s Regional Influence: Iran has long supported various non-state actors, including Hezbollah in Lebanon, Houthi rebels in Yemen, and various militias in Iraq and Syria, extending its strategic reach and complicating regional conflicts (source: cia.gov, councilforeignrelations.org).

Cyber Capabilities: Both Iran and its adversaries have demonstrated sophisticated cyber warfare capabilities, which could be deployed to disrupt critical infrastructure, financial systems, or military operations (source: cisa.gov, various cybersecurity reports).

Scenarios (3) with Probabilities

Scenario 1: Limited Escalation and De-escalation (Probability: 50%)

Description: This scenario involves targeted military strikes by the U.S. and Israel against specific Iranian military or nuclear facilities, followed by a measured and contained response from Iran, primarily through proxy forces or limited, non-escalatory attacks (e.g., cyberattacks, minor shipping disruptions). International diplomatic efforts, potentially led by the UN or European powers, quickly gain traction to establish a ceasefire and de-escalation framework. Both sides, while demonstrating resolve, seek to avoid a full-scale regional war due to its prohibitive costs.

Key Characteristics: Limited geographical spread of conflict, short duration of intense hostilities, rapid diplomatic engagement, no direct attacks on major energy infrastructure or international shipping lanes by state actors, and a focus on containing the conflict to specific military targets.

Scenario 2: Regional War (Probability: 35%)

Description: In this scenario, Iranian retaliation is more significant, potentially involving direct missile strikes against Israeli or U.S. assets in the region, or substantial attacks on critical energy infrastructure in the Gulf (e.g., oil fields, refineries, shipping in the Strait of Hormuz). This triggers further retaliatory strikes from the U.S. and Israel, leading to a sustained military conflict across multiple fronts. Proxy groups become fully activated, and neighboring countries are drawn into the conflict, either directly or by hosting military operations. Economic disruption is severe, and humanitarian crises escalate.

Key Characteristics: Widespread military engagements across the Middle East, significant disruption to global energy supplies and trade routes, prolonged conflict duration (weeks to months), potential for large-scale refugee movements, and a breakdown of diplomatic channels in the short term.

Scenario 3: Broader Global Confrontation (Probability: 15%)

Description: This is the most severe scenario, where the regional conflict draws in other major global powers, either through direct military involvement or significant material support to the warring parties. Miscalculation, an accidental escalation, or a deliberate act could lead to attacks on international shipping outside the immediate conflict zone, or cyberattacks with global reach. The conflict could expand beyond the Middle East, potentially involving naval confrontations in international waters or significant cyber warfare targeting global financial systems. This scenario implies a severe global economic recession, widespread humanitarian catastrophe, and a fundamental reordering of international alliances.

Key Characteristics: Involvement of non-regional major powers, severe and sustained disruption to global trade and financial systems, potential for nuclear proliferation concerns, long-term geopolitical instability, and a breakdown of the existing international order.

Timelines

Immediate (Hours to Days): Initial military responses and counter-responses. Heightened alert levels across the region. Immediate market reactions (e.g., oil price spikes, stock market volatility). Urgent diplomatic consultations and emergency UN Security Council meetings. Warnings issued to international shipping and aviation.

Short-term (Weeks to 3 Months): Sustained military operations or a rapid de-escalation phase. Potential for significant humanitarian impact. Economic fallout begins to materialize (e.g., supply chain disruptions, increased insurance premiums). Diplomatic efforts intensify, aiming for a ceasefire or negotiated settlement. Regional alliances may shift or solidify.

Medium-term (3 Months to 18 Months): If conflict persists, long-term economic damage, reconstruction needs, and refugee crises become prominent. If de-escalation occurs, focus shifts to post-conflict stabilization, security guarantees, and potential new regional security architectures. Energy markets adapt to new supply dynamics. Defense spending increases become institutionalized.

Long-term (18 Months and Beyond): Fundamental geopolitical realignments in the Middle East. Potential for a new regional balance of power. Long-term impacts on global energy transition strategies. Enduring effects on international law, trade relations, and global governance structures. The legacy of the conflict shapes future policy decisions for decades.

Quantified Ranges (if supported)

While specific future numbers cannot be precisely predicted, historical precedents and economic models allow for the identification of potential ranges for key indicators under various scenarios, explicitly marked as author’s assumptions based on historical patterns:

Oil Prices: In a scenario of regional war (Scenario 2), oil prices could experience significant upward pressure. Historically, major Middle East conflicts have led to price spikes ranging from 20% to over 100% in the short term (author's assumption based on historical market reactions to supply shocks). For instance, the 1990 Gulf War saw crude oil prices nearly double in a few months (source: historical crude oil price data). A sustained disruption to the Strait of Hormuz could push prices to unprecedented levels, potentially exceeding $150-$200 per barrel (author's assumption based on extreme supply shock models).

Shipping Insurance Premiums: For vessels operating in the Persian Gulf and surrounding waters, war risk insurance premiums could increase dramatically. In past periods of heightened tension, these premiums have risen by 50% to 500% for specific voyages (author's assumption based on historical maritime insurance market data). This directly impacts the cost of global trade.

Defense Spending: Participating and concerned nations would likely increase defense budgets. For directly involved nations, this could range from an immediate 5-15% increase in annual defense expenditure to cover operational costs and replenish materiel (author's assumption based on historical conflict spending). For other nations, increased security measures and strategic reserve building could lead to smaller but significant budget reallocations.

Global GDP Growth: A regional war (Scenario 2) could shave 0.5-2.0 percentage points off global GDP growth annually due to energy price shocks, trade disruptions, and increased uncertainty (author's assumption based on IMF/World Bank analyses of geopolitical shocks). A broader global confrontation (Scenario 3) could trigger a global recession, with GDP contractions of 3% or more.

Refugee Flows: Depending on the intensity and duration of conflict, millions could be displaced. The Syrian civil war, for example, led to over 6 million refugees and 6 million internally displaced persons (source: unhcr.org). A major conflict involving Iran could generate comparable or even larger numbers, placing immense strain on humanitarian aid and neighboring countries.

Risks & Mitigations

Risks:

1. Energy Supply Disruption: The most immediate and significant risk is the disruption of global oil and gas supplies, particularly through the Strait of Hormuz. This could trigger a global energy crisis, impacting all sectors of the economy.
2. Global Economic Recession: Energy price spikes, increased shipping costs, supply chain disruptions, and heightened uncertainty could severely dampen global economic growth, potentially leading to a recession.
3. Humanitarian Crisis: Large-scale conflict would inevitably lead to significant civilian casualties, mass displacement, and severe humanitarian needs, straining international aid organizations and potentially destabilizing neighboring countries with refugee flows.
4. Regional Destabilization: The conflict could spread beyond Iran, drawing in other regional actors and exacerbating existing proxy conflicts, leading to widespread instability across the Middle East.
5. Cyber Warfare and Terrorism: Both state and non-state actors could employ sophisticated cyberattacks against critical infrastructure globally. The conflict could also inspire or enable terrorist groups, increasing global security threats.
6. Nuclear Proliferation Concerns: Any significant damage to Iranian nuclear facilities or a perceived existential threat could accelerate Iran’s pursuit of nuclear weapons, or conversely, lead to calls for other regional powers to develop their own capabilities.
7. Escalation to WMD Use: While a low probability, the risk of chemical, biological, or even tactical nuclear weapons use, especially in a desperate scenario, cannot be entirely discounted, with catastrophic consequences.

Mitigations:

1. Diplomatic Engagement and Mediation: Immediate and sustained diplomatic efforts through the UN, major powers (e.g., EU, China, Russia), and regional actors are crucial to de-escalate tensions, establish communication channels, and negotiate a ceasefire.
2. Strategic Petroleum Reserve Release: Major oil-consuming nations can coordinate releases from their Strategic Petroleum Reserves (SPRs) to stabilize global oil markets and mitigate price shocks (source: iea.org).
3. Enhanced Maritime Security: Increased naval presence and international cooperation to protect shipping lanes, particularly in the Persian Gulf and Gulf of Oman, are essential to ensure freedom of navigation and prevent attacks on commercial vessels.
4. Humanitarian Aid Preparedness: International organizations and governments must pre-position humanitarian aid, prepare for large-scale refugee movements, and establish safe corridors for civilians.
5. Cyber Defense Strengthening: Governments and critical infrastructure operators worldwide must enhance their cyber defenses and intelligence sharing to counter potential cyberattacks stemming from the conflict.
6. Energy Diversification and Efficiency: Long-term strategies should focus on accelerating the transition to renewable energy sources, diversifying energy supply chains, and improving energy efficiency to reduce reliance on volatile regions.
7. Intelligence Sharing and De-confliction: Improved intelligence sharing among allies and establishing de-confliction mechanisms with potential adversaries can help prevent miscalculation and unintended escalation.

Sector/Region Impacts

Sector Impacts:

Energy (Oil & Gas): This sector faces the most immediate and profound impact. Supply disruptions, especially from the Strait of Hormuz, would lead to significant price volatility and potential shortages. Increased demand for alternative sources (e.g., U.S. shale, non-OPEC+ producers) and accelerated investment in renewable energy could follow. Energy companies with assets in the region face direct operational risks.

Shipping & Logistics: Maritime routes through the Persian Gulf and Red Sea would become high-risk zones, leading to soaring insurance premiums, re-routing of vessels (e.g., around Africa), and significant delays and cost increases for global trade. Air cargo and passenger aviation would also be affected by airspace restrictions and higher fuel costs.

Defense & Security: Defense contractors would likely see increased demand for military hardware, intelligence services, and cybersecurity solutions. Governments would re-evaluate defense postures and potentially increase military spending. Cybersecurity firms would experience heightened demand for threat intelligence and protective services.

Financial Markets: Global stock markets would likely experience significant downturns due to uncertainty and economic slowdown fears. Commodity markets (oil, gold, other raw materials) would see increased volatility. Currencies of oil-importing nations might weaken, while those of oil-exporting nations could strengthen. Inflationary pressures would increase globally.

Insurance: War risk insurance premiums for shipping, aviation, and infrastructure in the region would skyrocket. Reinsurance markets would face substantial claims, potentially leading to a hardening of rates across various lines of business.

Infrastructure & Construction: In the event of damage, there would be a need for reconstruction efforts, potentially involving international aid and specialized contractors. However, new infrastructure projects in the region might be delayed or canceled due to increased risk and capital flight.

Tourism & Hospitality: Travel to the Middle East would decline sharply, impacting airlines, hotels, and related services in the region and potentially globally due to broader travel advisories.

Region Impacts:

Middle East: The region would be the epicenter of the crisis, facing direct military conflict, economic devastation, humanitarian crises, and potential political fragmentation. Countries like Iraq, Syria, Lebanon, and Yemen, already fragile, could see existing conflicts intensify. Saudi Arabia and the UAE would face direct security threats and economic disruption despite potentially benefiting from higher oil prices.

Europe: Highly dependent on Middle Eastern energy, Europe would face severe economic consequences from energy price spikes and supply disruptions. It would also likely bear a significant burden of refugee flows and be at the forefront of diplomatic efforts.

Asia (especially East and South Asia): Major energy importers like China, India, Japan, and South Korea would face significant economic headwinds due to increased energy costs and trade disruptions. Their supply chains, heavily reliant on global shipping, would be severely impacted.

United States: While directly involved militarily, the U.S. would face economic impacts primarily through higher energy prices and global economic slowdown. Domestic political dynamics would be significantly shaped by the conflict, and defense spending would increase.

Africa: Some African nations, particularly those dependent on oil imports, would suffer economically. The continent could also see increased instability if existing extremist groups exploit the broader geopolitical turmoil.

Recommendations & Outlook

For governments, infrastructure delivery agencies, regulators, public finance bodies, and large-cap industry actors, the following recommendations are critical in navigating this highly volatile environment:

1. Enhanced Risk Assessment and Scenario Planning: Immediately update risk registers and conduct comprehensive scenario planning exercises (e.g., stress tests) to evaluate the impact of various escalation pathways on operations, supply chains, financial health, and strategic objectives. This includes assessing geopolitical, economic, cyber, and physical security risks.
2. Supply Chain Resilience: Diversify supply chains and logistics routes where possible. For critical inputs (e.g., energy, raw materials), explore alternative sources and build strategic reserves. Review and update business continuity plans with a focus on extreme disruption scenarios.
3. Energy Security Strategy: Governments should reassess national energy security strategies, prioritizing diversification of energy sources (including renewables) and suppliers. Consider coordinated releases from strategic reserves and explore mechanisms to cushion consumers and industries from extreme price volatility.
4. Financial Prudence and Contingency Funding: Public finance bodies should prepare for potential economic downturns, increased defense spending, and humanitarian aid requirements. Large-cap industry actors should review liquidity positions and access to emergency funding. (scenario-based assumption: increased fiscal pressure is highly probable).
5. Cybersecurity Fortification: Given the heightened risk of cyber warfare, invest significantly in advanced cybersecurity defenses, threat intelligence, and incident response capabilities across all critical infrastructure and corporate networks.
6. Diplomatic Engagement and International Cooperation: Support and actively participate in international diplomatic efforts aimed at de-escalation. For industry, this means understanding the evolving regulatory and sanctions landscape that may emerge from international responses.
7. Employee Safety and Travel Advisories: Prioritize the safety of personnel operating in or transiting through the Middle East. Update travel advisories and evacuation plans as necessary.

Outlook (Scenario-Based Assumptions):

Short-term (next 3-6 months): We anticipate continued high volatility in energy markets and global financial indices. The immediate outlook is dominated by the risk of further escalation, with a high probability of sustained diplomatic efforts running in parallel with military actions (scenario-based assumption). Governments will likely face immediate pressures to increase defense spending and manage public anxiety.

Medium-term (6-18 months): Should a de-escalation occur (Scenario 1), the focus will shift to regional stabilization, potential new security frameworks, and economic recovery. However, if the conflict persists or expands (Scenarios 2 or 3), the global economy will likely enter a period of significant contraction, with profound implications for public finance and long-term investment strategies (scenario-based assumption). Infrastructure projects in the region would be severely delayed or halted.

Long-term (beyond 18 months): The geopolitical landscape of the Middle East will likely be fundamentally reshaped. Regardless of the immediate outcome, there will be a lasting impact on global energy security, international trade routes, and the balance of power among major global actors. The imperative for energy transition and supply chain resilience will be significantly amplified (scenario-based assumption). The role of international institutions in conflict resolution will either be strengthened or severely undermined. The long-term outlook suggests a more fragmented and potentially less predictable global order.

By Gilbert Smith · 1772269428