But the logistical supply chains and software requirements of the jet make it impossible to operate without U.S. support.

The F-35 is a bestseller.

Australia, Belgium, Denmark, Finland, Israel, and several other countries have purchased the jet.

An Israeli F-35I.

An Israeli F-35I.© IDF Spokesperson’s Unit.

But Trumps election and his disruption of NATO and traditional treaty systems have been bad for business.

Carney is following the lead of Portugals defense minister who said something similar earlier this month.

Neither of them mentioned a kill switch, but the rumor began to circulate online in defense circles.

U.S. Secretary of Defense Pete Hegseth speaks to reporters during the White House Easter Egg Roll on the South Lawn of the White House on April 21, 2025 in Washington, DC.

The rumor was loud enough for official people to issue official statements.

Lockheed Martin posted a copy of the statement on X.

There is no kill switchThe F-35 ‘kill switch’ rumor has been debunked.

Stellar Laelaps / Flight Test Aegis Weapon System 32 (ftm 32)

Buying an F-35 is a lot like buying an iPhone or a Tesla.

When those machines break its hard to repair them without going back to the manufacturer.

So too with the F-35.

Donald Trump throws a pen to the audience after signing a proclamation during a Greek Independence Day celebration at the White House on March 24, 2025 in Washington, DC.

Weapons this advanced require a lot of maintenance and support.

When an F-35 breaks you cant just repair it on sight with what youve got lying around.

American contractors or American-trained contractors have to come in and take care of the problem.

In this aerial view smoke billows from the MV Solong cargo ship in the North Sea, off the Yorkshire coast, on March 11, 2025 in the United Kingdom.

As The War Zone put it:you dont need a kill switch to hobble exported F-35s.

Pieces of the jet are made in Texas, Italy, and Japan.

Lockheed Martin designed and sold the F-35 in an environment where many of these international relationships were rock solid.

Boeing B 29 “enola Gay”

One of the biggest problems with the F-35 is a software issue.

Its not just a matter of updating software, OSINT analyst Bill Sweetmansaid in a post on X.

The Mission Data File (MDF) is the electronic battle manual for the F-35.

Photo:

It provides known target characteristics for the fusion engine that IDs targets with minimal emissions.

It contains threat emitter models that permit the aircraft to follow the minimum-detectability flightpath, the blue line track.

It runs comms, hosts the electronic order of battle.

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