The article highlights the impact of Russia's invasion of Ukraine on Europe's supply chains, leading to a surge in prices and the possibility of rationing in various countries. Germany has initiated the first stage of rationing its natural gas supplies, in an effort to reduce dependence on Russian energy and prevent shortages. Spain and Greece are also rationing essential food items. The rationing is a preventative measure to avoid panic buying and further shortages. The war in Ukraine has disrupted the supply of key commodities like wheat and sunflower oil, causing significant challenges for European countries.