Ukrainian strikes on Russian energy infrastructure have triggered a severe fuel crisis, forcing curbs on sales and leading to price hikes. Cities like Novorossiysk have suspended gasoline sales to private motorists, while others see Cossacks deployed to manage queues and prevent conflict. Russia is now importing fuel and allowing lower-quality production to combat shortages.

Analysts say Russia's fuel crisis may affect its domestic economy, but the war in Ukraine will remain the priority.

Lines are growing at Russian gas stations -- and so is the frustration and uncertainty as several months of Ukrainian attacks have set oil refineries ablaze and choked supplies…