A lot of countries buy arms from the US. In fact I might even hazard to guess that the US is the world's largest arms supplier. Perhaps you are right, maybe the missiles will not work if fired in the wrong direction.
Dont know anything about missiles, but jets wont work. At least not the Eurofighter for some reason.
Apparently an NSA contractor has to type in a key before every start.
>Damit die 15 Eurofighter auch wirklich starten dürfen, zahlte Österreichs Bundesheer in drei Jahren 1,5 Millionen Euro an eine private US-Sicherheitsfirma: Jetzt wurden die Kosten für jene am Fliegerhorst Zeltweg stationierten zwei "Zivilisten" bestätigt, die jedes Aufsteigen eines Jets mit einem aktuellen US-"Crypto-Schlüssel" für die Navigation und die Freund-Feind-Erkennung zulassen müssen.
>In order for the 15 Eurofighters to start, Austria's federal army paid 1.5 million euros over three years to a private US security company. Now, the costs for those two "civilians" stationed at the Zeltweg air base have been confirmed, who have to allow every start with current US-"Crypto-Keys" for navigation and friend or foe identification.
The ministry of defense denies that the two Americans from a not named US company are NSA contractors. They claim the jets would fly without but without encrypted navigation and communication. He also mentions the same situation for Sweden and Switzerland.