tom: let's bring in bloomberg's russia economy and government editor, greg sullivan, with context. re the champagne corks popping on moscow at this point? greg: well, the mood in moscow certainly is shocked right now. the kremlin was taken aback by both the speed and harshness of trump's comments. in many ways, this exceeds their expectations of what they hoped for in bringing the u.s. to their view on the war, but caution remains, even as they are happy about what they are seeing. they are very cautious. russian officials don't understand trump's negotiating strategy. they worry about potential traps down the road and also trump is a famously minor -- mercurial person and could change stands quickly so they are trying to analyze and understand how is this white house operating, what lies ahead and what is the negotiating strategy, even as they are happy with what they are seeing. tom: happy but was a sense of caution. meanwhile, we are getting more detail on how european leaders are looking to fill the gap when it comes to defense across europe and for ukraine. what do we know abou