Key Shift: From 'Non-Participation' to 'Engagement'

Six major nations—the UK, France, Germany, Italy, the Netherlands, and Japan—have issued a joint statement condemning Iran's blockade of the Strait of Hormuz and attacks on commercial vessels, pledging to ensure safe passage through this strategic waterway. This statement marks a stark contrast to these same countries' rejection of U.S. President Donald Trump's request for naval deployments just weeks earlier.

In the joint statement released by the UK government, the six nations declared: "We condemn in the strongest possible terms Iran's recent attacks on unarmed commercial vessels, attacks on civilian infrastructure including oil and gas facilities, and the effective closure of the Strait of Hormuz by Iranian forces." The countries also welcomed the International Energy Agency's (IEA) decision to release emergency strategic petroleum reserves.

Why This Policy Shift Matters

This joint statement suggests that Western allies' strategic calculations have undergone rapid change. France had previously explicitly rejected Trump's demands, stating it was "not a party to the conflict," but appears to have revised its position as Iranian attacks escalated and oil prices surged.

The Strait of Hormuz is a strategic chokepoint through which approximately 20% of global oil shipments pass. Iran's threat to blockade the strait transcends a regional conflict, potentially delivering a direct blow to global energy security and the broader economy. Amid escalating U.S.-Iran tensions, oil prices have already been climbing, imposing serious burdens on European and Japanese economies.

The Trump administration has been intensifying pressure on Iran while demanding burden-sharing from allies. The six nations' policy reversal demonstrates both the effectiveness of Trump's pressure and the fact that Iran's actual actions have begun to be perceived as threats by European and Asian countries.

Historical Tensions Over the Strait of Hormuz

Tensions over the Strait of Hormuz are not a new phenomenon. During the Iran-Iraq War in the 1980s, Iran demonstrated the strategic value of this strait through the "Tanker War." At that time, the U.S. guaranteed the strait's safety through "Operation Earnest Will," escorting Kuwaiti oil tankers.

In 2019, tensions escalated again when Iran's Revolutionary Guards seized a British-flagged tanker. European countries at that time did not join the U.S.-led maritime security coalition, instead establishing their own "European Maritime Awareness in the Strait of Hormuz (EMASOH)" mission. This was an attempt by Europe to maintain balance between the U.S. and Iran.

However, the current situation in 2025 differs from the past. Trump's second-term administration has resumed its "maximum pressure" policy toward Iran, and Iran has responded with more aggressive tactics including strait blockades and attacks on civilian facilities. Direct military actions such as Israel's strikes on Iranian gas fields have further amplified tensions.

Each Nation's Dilemma: Economy vs. Security

Behind the six nations' policy shift lies complex calculation. France and Germany have traditionally maintained economic relations with Iran, and the European Union (EU) has supported preserving the 2015 Iran nuclear deal (JCPOA). However, maintaining this position has become difficult in the face of surging oil prices and energy security threats.

For Japan, with approximately 90% dependence on Middle Eastern oil, a Hormuz Strait blockade represents a direct existential threat. Post-Brexit Britain is pursuing a dual strategy of prioritizing stronger relations with the U.S. while trying to maintain independent influence in the Middle East.

On the U.S. side, Defense Secretary Pete Hegseth has suggested changes to war funding approaches, leaving specific military operation timelines to President Trump. Trump has stated he won't send ground troops to Iran, but simultaneously pledged to "do whatever it takes to lower oil prices." His Treasury Secretary has even mentioned the possibility of lifting some sanctions on Iranian oil.

Future Outlook [AI Analysis]

While the six nations' joint statement holds symbolic significance in demonstrating Western alliance unity, the likelihood of it leading to substantive military intervention remains unclear. What specific form of "support" each country will provide has not been clearly stated, and they will likely maintain cautious positions regarding direct military action such as naval deployments.

In the short term, a combination of IEA petroleum reserve releases and diplomatic pressure from various countries is expected to continue. However, if Iran intensifies the strait blockade or continues attacks on commercial vessels, even Europe and Japan may find it difficult to maintain neutrality.

In the long term, this crisis could catalyze a restructuring of global energy supply chains. Multi-layered changes are anticipated, including accelerated renewable energy transitions in Europe, supply source diversification by Asian countries, and reduced U.S. involvement in the Middle East. Ironically, the Hormuz Strait crisis could accelerate the transition to a "post-oil era."

However, numerous variables remain, including unpredictable Trump administration policy changes, Iran's internal political dynamics, and responses from China and Russia, meaning the situation could shift rapidly at any time. Most importantly, diplomatic solutions must be pursued to prevent military confrontation from escalating into actual war.