The year is 2028 and masked Russian “little green men” start crossing the border of an eastern European country.
Nato’s Article 5 is invoked. In London, officials want to quickly deploy Britain’s F-35 stealth jets to the frontier – but there is a problem.
The US,
unwilling to clash with Vladimir Putin, says it won’t support the deployment and refuses to provide communications support, logistics, or even spare parts.
Within a matter of weeks, the Royal Air Force’s most advanced aircraft risks being rendered inoperable along with other American platforms operated by the alliance.
This is the grim scenario that experts say Britain must now plan for as it grapples with
the increasingly volatile whims of Donald Trump.
It has been made chillingly plausible by recent American decisions
to cut off support to Ukraine, including both intelligence sharing and jamming software updates for Kyiv’s fleet of donated F-16 fighters.
In Germany, officials are wondering aloud about whether dozens of F-35 jets the country has purchased will also be vulnerable to a “kill switch”.
“The chances of a US government suddenly pulling the plug on US-supplied capabilities to Britain have gone from ‘don’t be ridiculous’ to ‘you’ve got to consider it’s a possibility’. That’s a sea change,” says Francis Tusa, an independent defence analyst.
“If you go back to the 1998 defence review and all the reviews since, the absolute assumption has always been that the UK’s defence fits into a US-led alliance.
“Now we face the possibility that the US is walking away and may no longer even be an ally.
“So
the entire underlying assumption for UK defence has been destroyed, in about three weeks.”