Croatia received rockets until we reconquered Krajina. No Gentile nation would tolerate threats to its territorial integrity like Israel does.
Certainly, the Noahide obligation to save a person's life includes saving our Jewish brothers.
I'm not sure if Jews may teach Torah to righteous Gentiles in Hebrew or Aramaic. The Divine Code by Rabbi Weiner is mainly speaking about a sincere and pious Gentile who wants to learn Torah on his own in translated books.