security. the principle that one country can't change the borders of another by force. the principle that one country can't dictate to another its foreign policy and the choices including with whom it will associate, the principle that one country can't exert a sphere of influence to subjugate its neighbors. all of that is on the table. that's exactly why not only are we standing up but we rallied countries not just in europe but indeed beyond to make it clear to russia that this aggression will not be accepted, will not be tolerated, will not stand. so the choice is russia. it's also not about making concessions. it's about seeing whether in the context of dialogue and diplomacy will are things that both sides, all sides can do to reduce tensions. we've done that in the past. we did it with the intermediate nuclear forces treaty that unfortunately russia has violated in the previous administration pulled out of, in the context of the conventional forces in europe, having transparency and other measures put in place on the way exercises take place and those