The United Arab Emirates (UAE) actively participated in military operations against Iran on the side of the United States and Israel, including striking an Iranian oil refinery on Lavan Island in early April 2026. This was reported by The Wall Street Journal (WSJ), citing anonymous sources familiar with the intelligence. According to the publication, the strike occurred immediately after US President Donald Trump's official ceasefire announcement, but before the ceasefire had actually taken effect.

The attacks were reportedly carried out in retaliation for previous Iranian strikes against the UAE. During the conflict, Iran launched more than 2800 missiles and drones at the Emirates—significantly more than at any other country, including Israel. However, the Emirates officially denies any involvement in any offensive operations against Tehran.

Analysts believe these actions represent a fundamental shift in Abu Dhabi's strategic approach, which now views Iran as a pariah state seeking to destroy its economic and social model. In addition to the strikes, the Emirates closed Iranian institutions in Dubai, restricted visas for Iranians, and supported UN resolutions authorizing the use of force to open the Strait of Hormuz.

Washington, according to sources, "quietly welcomed" the UAE's participation in the campaign, viewing it as a shift toward countering the Iranian regime. However, American officials, including the Pentagon press secretary, have refrained from directly commenting on the matter. Abu Dhabi has previously affirmed its right to respond to hostile actions, but does not comment directly on its role in the conflict.

WP previously reported that Iran damaged 15 American facilities in the Middle East. There were also reports of Israel's involvement, allegedly building a secret base in Iraq to support airstrikes against Iran.