The UK government is already committed to operating F-35Bs for decades to come, and these 12 aircraft replace 12 F-35Bs already planned for in the next procurement package.

The main reason for getting 12 F-35As is for the nuclear strike role and for cheaper operational conversion training for F-35B aircrew. They're not going to do much else, so the inability to refuel from RAF tankers isn't a huge dealbreaker.

If I have to give an educated guess I would say it's due to the logistics of maintenance for the Eurofighters.

> The Eurofighter’s European collaboration model distributes manufacturing and support across partner nations, and this model lowers acquisition costs for the initial adopters. However, the Typhoon's maintenance requirements, especially for its EJ200 engines, can be complex for operators outside Europe, which has hindered export sales.

Given the UK has left the EU, I wonder if that would effect their maintenance costs and availablity, although I would assume something could be worked out given they're in NATO!

> Eagle's answer to this was that other NATO countries would be able to refuel the RAF's F-35A fighters, which of course there will be absolutely no problem with during a period of crisis or conflict.

That will be because BAE Systems Tempest is crawling along with little investment.

Probably a condition imposed by the US in order for the UK to avoid tariffs or to grease the wheels of other trade agreements.

Because Europe doesn't produce anything comparable at present.