it a greater degree of protection, and the concern is ready, all along, the weapon supply is important, it is vital in the counteroffensive going on at the moment, but in the long term, after this conflict is over, deterring russia in the future would require something like nato membership, with its defensive alliance and the notion an attack on one as an attack on all. that is what ukraine really wants, it did not get it at the summit, some hope from officials i have spoken to they might get it at the washington summit next year. satisfaction, but certainly not celebration here in ukraine. gordon corera. on the reaction and ukraine. live now to colorado in the united states, and we can speak to dr mitchel wallerstein. he s a foreign policy expert with the chicago council on global affairs. thank you for talking to the bbc. our correspondence said about the mixed feelings in ukraine about the nato summit