42 aircraft, $29 billion lost: Congress report details shocking blow to US military in Iran war

3 min readUpdated: May 21, 2026 02:37 PM IST

At least 42 American military aircraft were lost or damaged during the conflict with Iran under “Operation Epic Fury”, a new report prepared for the US Congress has claimed, raising fresh questions in Washington over the scale, cost and effectiveness of the campaign.

According to a report by Gulf News, the losses included fighter jets, drones, refuelling aircraft and surveillance planes during the February-April military operation carried out jointly by the United States and Israel.

The Congressional Research Service (CRS) report said the aircraft losses ranged from advanced F-35 stealth fighters and F-15E Strike Eagles to MQ-9 Reaper drones and KC-135 aerial refuelling tankers. The report added that the overall financial cost of the damaged or destroyed aircraft could exceed $29 billion.

According to Stars and Stripes, the US military lost 24 MQ-9 Reaper drones alone during the conflict. The report also detailed the loss or damage of several manned aircraft, including an F-35A Lightning II reportedly hit by Iranian ground fire, three F-15E Strike Eagles shot down in a friendly fire incident over Kuwait, and multiple KC-135 tankers damaged during Iranian missile and drone strikes on bases in Saudi Arabia.










MQ-9 Reaper Drones Lost

24 of 42 total airframes







1

MQ-9 Reaper

Strike / surveillance

DRONE

2

KC-135 Stratotanker

Aerial refuelling

TANKER

3

F-15E Strike Eagle

Multi-role fighter

FIGHTER

4

MC-130J Commando II

Special ops transport

SPEC OPS

5

F-35A Lightning II

Stealth fighter

FIGHTER

6

A-10 Thunderbolt II

Ground-attack jet

ATTACK

7

E-3 Sentry

AWACS early warning

AWACS

8

HH-60W Jolly Green II

Combat search & rescue

CSAR

9

MQ-4C Triton

High-altitude surveillance

DRONE













#PLATFORMROLECATEGORYCOUNT
1MQ-9 ReaperStrike / surveillanceDrone24
2KC-135 StratotankerAerial refuellingTanker7
3F-15E Strike EagleMulti-role fighterFighter4
4MC-130J Commando IISpecial ops transportSpec Ops2
5F-35A Lightning IIStealth fighterFighter1
6A-10 Thunderbolt IIGround-attackAttack1
7E-3 SentryAWACSAWACS1
8HH-60W Jolly Green IICombat search & rescueSpec Ops1
9MQ-4C TritonHigh-altitude surveillanceDrone1

MQ-9 Reaper × 24  ·  MQ-4C Triton × 1

KC-135 Stratotanker × 7  ·  E-3 Sentry AWACS × 1

F-15E Strike Eagle × 4  ·  F-35A Lightning II × 1

MC-130J Commando II × 2  ·  HH-60W Jolly Green II × 1

Source: Congressional Research Service (CRS) report compiled from news reports and statements by the US Department of Defense and US Central Command · Pentagon cost estimate per testimony of Acting Pentagon Comptroller Jules W Hurst III, House Appropriations subcommittee, May 12, 2026 · Figures subject to revision.

Questions over transparency and military readiness

The findings have intensified debate in Washington over transparency surrounding the Iran campaign. Lawmakers have pressed the Pentagon for a clearer accounting of military losses and operational readiness after the campaign. The CRS report reportedly relied on Pentagon statements, CENTCOM disclosures and media reports, while cautioning that the numbers could still change because some damage assessments remain classified.

Rising tensions between Washington and Tehran

The controversy comes amid renewed tensions between Washington and Tehran. Iran warned that any fresh US military action could widen the conflict beyond the Middle East. At the same time, US President Donald Trump signalled that Washington was considering further military options if negotiations with Tehran collapsed.

Meanwhile, criticism has also emerged within the US Congress. The New York Post reported that the US Senate recently advanced a war powers resolution seeking to limit further military action against Iran without congressional approval, reflecting growing unease over Operation Epic Fury and its long-term consequences.

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