Electronic Warfare Aircraft Tracks Iran Military Movements: Has Compass Call Entered the Conflict?

International air traffic systems tracked the arrival of two U.S. Air Force EA‑37B Compass Call electronic warfare aircraft at RAF Mildenhall in the United Kingdom on the morning of March 31, 2026.

Reports suggest the deployment could signal a potential role for the aircraft in U.S. military operations against Iran.

Tracking Two U.S. Electronic Warfare Aircraft

Misbar’s team tracked the airlift operation, which began with the early‑morning takeoff of the first aircraft, registered 19‑1587, from Wrightstown Airport at 00:51 UTC.

The transatlantic flight lasted about six and a half hours, with the aircraft arriving at RAF Mildenhall in the United Kingdom at 07:34 a.m.

The second aircraft, registered 17‑5579, followed shortly after, departing Wrightstown at 01:33 a.m. and landing at RAF Mildenhall at 08:24 a.m. UTC.

EA‑37B Aircraft Technical Specifications

The EA‑37B Compass Call provides the U.S. military with electronic superiority, using the advanced Gulfstream G550 airframe to achieve high speeds and altitudes up to 45,000 feet.

The aircraft’s primary operational value is in standoff jamming, allowing it to “blind” enemy radars and disrupt communications networks from a safe distance, well beyond the reach of Iranian air defenses.

In the current operation, the aircraft is tasked with neutralizing Revolutionary Guard command-and-control centers and disabling air defense systems such as the S‑300 and Bavar‑373, preventing them from detecting friendly aircraft.

Beyond electronic attacks, the EA‑37B plays a critical role in electronic intelligence (ISR), equipped with sensitive digital systems capable of geolocating hostile radio or radar signals.

This capability allows U.S. forces to create real-time, precise maps of Iranian troop movements and missile launch sites, supporting targeted strikes.

The aircraft can also operate over the Persian Gulf to disrupt drones by severing their links to control stations and interfere with cruise missile guidance systems targeting commercial ships and naval vessels, effectively isolating Iranian airspace electronically and reducing risks for subsequent air and ground operations.

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