Hosted by Norway, Dynamic Guard is a multi-national exercise, merged with Norwegian led exercise TG 19-1 and aimed at maintaining proficiency in maritime electronic warfare and anti-ship missile defense… SNMG1 is composed of the US flagship guided-missile destroyer USS Gravely (DDG107), the German Navy replenishment tanker FGS Spessart (A1442), and the Polish guided-missile frigate ORP General Kazmierz Pulaski (FrR 272).