for now ukraine says that is what is needed here. what else can be done by the u.s. or by nato militarily, short of boots on the ground or in the air. >> yeah, so that's going to be a difficult thing with the no-fly zone, ana, you would need to actually establish air supremacy over that area and, of course, we'd have to bring our assets in over ukraine to do that. so short of that, short of boots on the ground, basically it amounts to resupplying the ukrainians and making sure those supply lines to the ukrainian front lines are not interdicted, not impeded by anything that the russians are doing. so it's a dicey situation or could potentially be a dicier situation, but i think that that would be the key thing is both you have that kind of military support, provide them with weapons systems they can use, and munitions to go with those weapons systems. and then in addition to that, of course, intelligence support to give them a realtime view of exactly what's going on from our