The fifth operation took place at a sensitive US military base near the German city of Stuttgart, where Ukrainian soldiers were being trained on how to use the Patriot air defence system, the court heard.
A sophisticated piece of surveillance equipment called a “Stealth Catcher IMSI Grabber” was to be used to gather the details of the personal phones of Ukrainian troops there, the prosecution said.
It was alleged that one of the defendants, Katrin Ivanova, was going to operate the equipment.
If successfully gathered, this would have allowed the geolocation of the air defence systems once in the field, giving Russia a significant military advantage.
The final operation presented by the prosecution involved a plan to kidnap or kill a Russian dissident named Kirill Kachur, it said.
The court heard how all three defendants took part in a complex surveillance mission that involved a chain-smoking, fast food loving, Russian spy codenamed Red Sparrow.
One of the messages presented to the jury said: “Our friends would like to see him return to Russia… we don’t mind if he dies by accident, but better if he manages to find his way to Moscow.”
The prosecution says the existence of these schemes is not in doubt - thousands of messages set out the details, with Orlin Roussev and Biser Dzhambazov having already admitted their role in the operations.
What is in question is the extent to which the three on trial - Katrin Ivanova, Vanya Gaberova, and Tihomir Ivanchev - were aware of the nature of the work they were doing.
All three deny the charges and the trial continues.