Leon Panetta: “I want to thank you on their behalf for your dedication and for your support, particularly in a time of war.”

I think the United States ought to be part and parcel of any agreement to be able to provide a security assurance to make sure that Ukraine is protected from the kind of invasion that we've seen from Russia.

I think we have to take this intelligence assessment as a real threat to NATO.

The message that went out from this meeting to the world is that United States credibility in dealing with our allies has taken a real hit.

I think it's a -- it is something we've got to pay attention to because I think this is a dangerous moment. If we're facing other lone wolf terrorists in this country.