I can’t say much about the horrendous scenes in Ukraine that hasn’t been said more eloquently by others. I am not qualified to comment on world affairs, so unlike pretty much everyone else on Twitter, I will refrain and point you to the BBC, who are doing an excellent job of reporting from the scene.
The pictures on the news, showing terrified children caught up in this conflict, affected me particularly strongly, and I was glad to find a UNICEF appeal to help them. If, like me, you feel completely helpless in the face of the news, that is one small thing you can do.