 American-made weapons can strike Russian territory for purely defensive reasons from Ukraine. This is a rule that they're set. They're trying to balance on this knife's edge of giving Ukraine as much support as possible without provoking any sort of wider war with Russia because, of course, Russia is a nuclear power. It's an adversary of the West. And both sides right now are trying to really keep a grip on containing the conflict within Ukraine. And that's a really difficult thing to do when you have Vladimir Putin