During the Russia Ukraine war many war crimes have been noted by the Hague already.
Latest one to the list surely for this Russian soldier who says he shot old people and a five-year-old child dead in the head:
https://www.pravda.com.ua/eng/news/2023/04/17/7398225/
Certainly the Russia war in Ukraine is the biggest war since WWII the planet has seen.
It will end without doubt when Russian occupiers leave Ukraine. Many of whom currently are doing that.