d. c. how has the war in ukraine changed the calculation around warfare and around u. k weapons and around nuclear deterrence? well, i think that's the impact is, is still to be determined. but the immediate situation is, i think it's hard in some positions in terms of those who are supporting the ban treaty, for example. but at the same time, it is moved some other states that has not been in prior in prior years, support of let's say, an extended nuclear umbrella. nate, mainly sweden and gentlemen, towards nato, which i think russia did not really anticipate or, or hope what happened as a result of the 2nd invasion of ukraine. so i certainly think it does have some additional impacts. we personally, having worked at the united nations as well as state department, i would have it. i think it's going to be very difficult for us diplomats to trust their counterparts on the other side given what's instead. and in addition, i think, i think another thing that's another development is though, there may be some more serious discussion of, of the safety insecurity of nuclear p