Getting Vova from Ukraine

Hi I'm Zhanna Hrodzytska and I don't usually like to ask for help, however I have learned to be more grateful for people that have always offered without me asking. War is an ugly beast no matter what the reasons of it may be because it affects everyone who is there and their families, no matter where they may be. My nephew Vova Abrukin is 17.5 and I need to get him out from Kiev and while I love my country I would hate for him to start his adult life by going to war at 18 ( they have to serve army once turn rhat age) and possibly ending it right there . Because he is minor and my sister has no custody rights, the person who does is an active soldier so it comes to that I have to make sure that Vova can get to the Poland boarder safely and where I would have to meet him and fly together to the USA and to start figuring out life for him here. Of course my place is not set up for it and he knows zero English but first things first and I just want to make sure I get him abroad. The best news is that today US homeland security has approved his entrance before November 3rd. I appreciate any help and everything will count