Shooting wars often start this way.
Step 1.) Sanctions, boycotts, blockades...
Russians in Europe are already talking about war.
I met one such Russian yesterday, just West of the Ukraine.
Perhaps Kondratieff was right (long wave cycle of economic crises, war, disease) and all those naysaying Economists who nix his ideas need to rethink.
The shooting war has already started. Russia is firing artillery into Ukraine on a daily basis. We have a transnational war in Europe now.