Nicaragua had a go at the German government in March 2024 re. arms sales and could not prevail [0]. I just read an article that claims they have already made a new attempt, which could be more successful in the current situation [1 - in German, sorry]

[0] https://en.wikipedia.org/wiki/Nicaragua_v._Germany

[1] https://nachrichten.ag/europa/waffenexporte-an-israel-in-gef...