I wonder what Biden was referring to when he stated
> "If Russia invades, that means tanks or troops crossing the border of Ukraine again, then there will be no longer a Nord Stream 2. We will bring an end to it."
> When asked how, the president says, "I promise you, we will be able do that."
(C-SPAN: https://www.youtube.com/watch?v=OS4O8rGRLf8 )