I saw that when checking but I didnt see mention of the US being involved (admittedly I didnt look too far past the headlines on Brave). I did see US Naval exercises in the Black Sea in 2021 though and there is a big NATO Naval exercise going on in the Baltic right now. And Russia began an exercise in the Baltic the day after NATO began. IMO if something is gonna happen it will be in the Baltic but our Navys involvement in Romanias Black Sea exercise could be under the radar enough to maybe do like you said and plant something that can be remote detonated.