"on February 3, 1998, near the Italian town of Cavalese, a ski resort in the Dolomites" "Twenty people died when a United States Marine Corps EA-6B Prowler aircraft cut a cable supporting a gondola of an aerial tramway." "the subsequent acquittal of the pilots, strained relations between the United States and Italy."
Or is this "just a human error"? Where to draw the line?
Absolutely and it's unlikely that those incidents resulted in sanctions against those countries.
It just highlights how hypercritical the US, Ukraine and the rest of the international community are.
All three of these states commit crimes - none of them should be excused.