Leon Panetta: “I find it really difficult... that the President needs to speak to this issue to Putin and to the country about this…”

It’s poor planning to wind up with your stockpiles of key weapons being depleted.

And that is the danger here: that rather than bringing peace, it's going to bring more war.

And ... we’re going to have to respond. And right now, because our missile systems and our supply of weapons being down, this is a vulnerable period for the United States.

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.