I think that those who believe in God should try to pray for Ukraine and the governments/leaders/rulers to have peace with each other. As the Bible says - "I urge you, first of all, to pray for all people. Ask God to help them; intercede on their behalf, and give thanks for them. Pray this way for kings and all who are in authority so that we can live peaceful and quiet lives marked by godliness and dignity." .
I personally think that no-one (deep down in their heart) wants a world war or anything like that. Everyone has some sort of heart in them. It is important to remain politically neutral in wars and conflicts like the Palestine and Israel war. I dont really think that Vladimir Putin wants a world war 3 but he feels pressure or something.
Political relations between some countries stop other countries from helping each other. The whole world is kind of an unfair place to live in. Harsh reality of life aint it.
Thats my humble opinion so whats yours?