Both cases remind me of Project Harp (https://en.wikipedia.org/wiki/Project_HARP). After the project was shut down by the US and Canada, the engineer behind it (Gerald Bull) decided to work for Saddam Hussein to build a "Babylon Cannon" which then caused Mossad to 'intervene' in 1990:

https://en.wikipedia.org/wiki/Gerald_Bull

I wonder how many similar but unknown cases there are involving former Soviet scientists and engineers trying their luck with 3rd world despots after the Soviet Union collapsed.

PS: just remembered that Willy Messerschmitt also ended up building a jet fighter for Egypt after the project was abandondend by Spain. Egypt then also eventually cancelled the project in 1969 though and instead decided to become close buddies with the Soviet Union - I wonder if that decision saved Messerschmitts from the same fate as Krug and Bull:

https://en.wikipedia.org/wiki/Helwan_HA-300