>> we're not going to discuss any operational details at this time. >> barbara? >> either of you, does this now represent a full u.s. commitment to defend saudi arabia and to defend the oil infrastructure of saudi arabia and for general dunford in particular, what is your concern about the iranian ability to launch swarms of drones at very great distances without any air defense detection of this incoming attack? >> so, what i would say, barbara, in terms of what we're doing is we're contributing to saudi arabia's defense. we would be looking, as the secretary said, for other international partners to also contribute to saudi arabia's defense. and with regard to dealing with a specific threat like you just spoke about, you know, no single system is going to be able to defend against a threat like that, but a layered system of defensive capabilities would mitigate the risk of swarms of