(This post is mostly for Russian people, but I added the translation anyway).

Guys, I think that many of you are horrified by the ongoing events and want to do something to stop the war.

If you are from Russia then you can sign the petition https://www.change.org/p/остановить-войну-с-украиной-2ce0a2d7-b957-4e23-981a-c67a26e2b0b7?source_location=discover_feed

If you have some connection with science then you can sign an open letter of Russian scientists https://trv-science.ru/2022/02/we-are-against-war/

Of course, this will not stop the war immediately, but it may help. Moreover, it is not a hard thing for you to do.

Share links to useful initiatives if you know any.