laudible they do, there are organizations trying to alleviate what has now become a very acute humanitarian crisis in ukraine and countries bordering ukraine as the u.n. estimated yesterday more than a million people have fled the country, and that does not even count the tens of thousands displaced in the country. so if you really want to help the people of ukraine as a private citizen find a way to donate resources to these organizations that are trying to alleviate that crisis. tom. >> any prohibitions on u.s. military personnel, let's say an army reservist who wants to go over? >> tom, i mean -- the president has been clear. no u.s. troops fighting in ukraine. an army reservist to fight with the ukrainian army, under the law, or d.o.d. regulations about that? >> i'm going to -- i'm not a lawyer, i have to take that one,