When did Jet Link Holland end?
Jet Link Holland ended in 2000.
The Arado Ar Projekt II was developed at the end of the war and was not used in the final fighting the European Campaign of World War 2. Their was a predecessor jet developed and used by the Luftwaffe prior to the Arado Projekt II jet plane. See the history of the jet planes the German created on the link below.
There is a difference between link encryption and end-to-end encryption in that link encryption encrypts and decrypts all traffic at each end of a communication line whereas with end-to-end encryption the message is encrypted by the sender at the point of origin and only decrypted by the intended reader