Sanction and export controls are used by governments around the world as a means of to further their foreign policy, national security goals and economic interests, not just the US. Further these regulations always govern both the export and re-export of the goods and services being sold. They are useless otherwise.

This is playing out right now in the EU in Switzerland and Germany with allowing armaments to be re-exported to Ukraine. [1]

[1] https://www.politico.eu/article/switzerland-rethinks-neutral...