I don't think there would move into a war following the breakout of the coronavirus.
But rather, people might focus a bit more on essential services for the time being. I wish there would be fewer bailouts for non-sustainable businesses to be honest. I'd rather see more free market movement other than more reliance on government.
If any conflicts is to arise, I doubt it would be in the form of war, especially not internationally. Riots are not related to international conflict, and don't have much to do with corona-virus. Maybe income inequality. More about internal conflicts.
If USA has riots and Trump is president ...and if i was Putin i would call my best buddy Xi Jinping and tell him to prepare the army and get ready for invasion...
Putin: - Xi it's time to visit America !
https://www.youtube.com/watch?v=c5BL4RNFr58war isn't as easy and cheap as you think it is. it requires a lot of resources that could cripple the economy even the one who started the war. I doubt any of the countries right now would risk their economy being ruined just because there are riots happening in America.