it's enormously on american presidential leadership. this is a moment he said when he came into the presidency america is back. that was his message to european allies and partners. and interestingly i think after the struggles of the first year and, you know, both with afghanistan there were some feeling among some europeans that they had not been fully consulted despite having been with the u.s. for 20 years. there was the rift with the french over the new deal with the australians. and so in a way those tests it's probably good they came before this big all-consuming challenge for biden. i think there's a sense coming out of the big munich strategy conference, security conference last week, that, you know, the u.s. actually is back at its seat at the head of the table. there's been enormous effort placed into diplomacy and on to being on the same page with allies, preparing these sanctions in advance, sharing intelligence to an unprecedented degree.