politically. sanctions are really beginning to bite now. and every few days, they are ratcheted up. mr. putin will be feeling the pain of this. he will appreciate quite of what's a mistake he has made in a unified response. but our military, our response must be very measured. and actually, what we really need to do, is get deterrence in place, within nato, to prevent mr. putin from taking another step beyond ukraine. he's subject to another gross misjudgment. he may very well, in the next few days, come on the pressure domestically. as the news filters through into russia. the truth of what is happening in russia's name. and if he comes under pressure. he will be very dangerous. and they'd only needs to look sharp. so we need to get our deterrence in place. and in the meanwhile, provide the assistance that we can to the ukrainians in every way,