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U.S.-Iran Conflict Escalates to Third Stage of Air Campaign Amid F-35 Dispute

As the U.S. enters the third stage of its air campaign, Iran claims it downed an F-35 stealth fighter while intensifying regional missile strikes.

March 21, 2026 at 5:00 AM

The military conflict between the United States and Iran has reached its 21st day, with the U.S. transitioning to the third stage of its air campaign. This phase shift moves beyond initial air defense suppression to target broader military infrastructure, including missile launch sites and naval small boats. President Trump has asserted that the U.S. has effectively defeated Iran’s primary military branches, though Iran’s Islamic Revolutionary Guard Corps (IRGC) maintains that its missile production remains at full capacity. A significant point of contention emerged following reports that an American F-35 fighter jet was downed on March 19. Iranian media claims this marks the first successful interception of the stealth aircraft, while U.S. officials state the jet merely performed an emergency landing at a regional base. Simultaneously, the conflict continues to spill over into the broader region; the United Arab Emirates reported intercepting 30 Iranian-linked projectiles—including four ballistic missiles—in just the last 24 hours. On the diplomatic front, a coalition of international powers including the UK, France, Germany, Japan, and Canada has condemned Iranian actions in the Strait of Hormuz, citing threats to the 20 percent of global oil supply that passes through the waterway. While President Trump has called on China to assist in resolving the maritime crisis, European allies remain divided on military intervention. French President Emmanuel Macron has specifically ruled out forced intervention, favoring a more cautious diplomatic approach to avoid a full-scale regional war.

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