Well, one way to approach it is to just start drawing up a list or outline.
- Off-hand, the West Berlin discotheque bombing.1986. It is commonly held that the event was a major factor precipitating military action on Libya.
- German 'terrorists' that were involved with hijacking the plane, perhaps boarding in a stopover in Athens, Greece, that was eventually the site of the rescue operation in Entebbe, Uganda. 1976.
- Event involving fatality, Benno Ohnesorg. Close proximity to time and space, were protests/demonstrations/crowd-surges around the opera/ West Berlin area, reported as havng to do with the state visit of the Shah of Iran. 1967.