US-Iran conflict shifts to Gulf waterways as energy crisis and military costs mount
The ongoing conflict between the United States and Iran has shifted significantly since hostilities began on February 28. While initial objectives focused on regime change and weakening regional allies, the conflict has expanded to include the Strait of Hormuz and critical energy infrastructure. Iran has utilized asymmetric warfare tactics, including the use of drones and speedboats, to disrupt shipping and impose costs. Meanwhile, the United States faces a mounting global energy crisis, depleted defensive weapons stocks, and significant financial burdens, with the Department of Defense reporting $38bn in costs as of August 1. Political pressure on the Trump administration has intensified ahead of midterm elections, with approval ratings reaching record lows amid public frustration over fuel prices and the war's unpopularity.
Key points
- The Strait of Hormuz and Gulf energy infrastructure have emerged as primary targets and points of contention.
- Iran has employed asymmetric warfare, using drones and speedboats to challenge US military assets.
- The US Department of Defense reported $38bn in conflict-related costs as of August 1.
- US government debt surpassed $40 trillion in August.
- Iran's GDP contracted by 10.1 percent year-on-year between March 21 and June 20.
- Brent crude prices rose from $72.48 on February 27 to $114.47 by late October.
Shift in conflict dynamics
The conflict between the US and Iran has evolved from its initial focus on regime change and regional allies to a broader struggle over maritime chokepoints. According to Urban Coningham of the Royal United Services Institute, the Strait of Hormuz and attacks on Gulf infrastructure have become central to the ongoing hostilities.
Iran has demonstrated resilience through decentralized structures and the use of mass-produced drones, which have challenged US military capabilities. While US strikes have damaged Iranian naval assets, the Islamic Republic remains intact, and the IRGC has reinforced its influence following the death of Supreme Leader Ali Khamenei.
Economic and political impact
The war has exacerbated a global energy crisis, with disruptions to Gulf supplies and sanctions on Russian exports tightening diesel and liquefied natural gas markets. Brent crude prices have remained elevated, trading at $114.47 as of late October, compared to $72.48 before the conflict began.
Domestically, the Trump administration faces significant political and economic challenges. US government debt reached $40 trillion in August, and the administration's approval rating has dropped to 31 percent. Iran's economy has also suffered, with the government estimating $270bn in damages from US-Israeli strikes and a 10.1 percent contraction in GDP during the second quarter.
Why it matters
The conflict has moved from a regional military engagement to a global economic disruption, with the Strait of Hormuz now a critical chokepoint for energy supplies. The long-term impact remains uncertain as both nations face mounting financial costs and political pressures.
What we know
- Hostilities between the US and Iran began on February 28.
- The US Department of Defense reported $38bn in conflict costs as of August 1.
- US government debt exceeded $40 trillion in August.
- Iran's GDP contracted by 10.1 percent year-on-year from March 21 to June 20.
- Brent crude was trading at $114.47 in late October.
- The International Energy Agency warned in October that supply constraints could persist into 2027.
What remains unclear
- The exact number of oil tankers damaged in the Strait of Hormuz is reported as seven by Iranian officials.
- The effectiveness of future US military deployments, such as the USS Theodore Roosevelt, remains a subject of strategic debate.
- The long-term impact of the conflict on the stability of the Iranian government is unclear.
