Actually it should be a simple as expiring whatever API key the jets use to communicate back to the US-based control servers. So when it POSTs to a StartEngine endpoint or whatever, it wouldn't start.
After WWII we Brits sold cracked Engima machines internationally. You need to assume a foreign power would be willing to try and sell you equipment with backdoors. If they reasonably believed you wouldn't be able to spot them, or change actions if you did.
I remember this in the news, and again during the first Irak war (the stories were that the U.S. were asking France for the "code"), hence my question:
Yes it does. The US nuclear weapons have PALs, and although they're not remote disabling functions, they require special codes, which are not given to the host country for arming them.
I'd have to look it up online, but while they used to import jet fighters from the US, Turkey builds similar F?? fighters and also drones like the Heron and other tools. But as a NATO member, I don't think they'd have a problem getting gear from third parties.
With current cad/cam systems I think it is possible to design a not bad Katusha analog in a weekend. And produce a couple in the next week. 20-30 of those build in secret could deliver a nasty first blow.
