Reaching an area 800 miles from the border with Russia, on Sunday, 31 May, Ukrainian drones struck a Russian fuel depot, oil pumping station, and a refinery.
These attacks are another in what is becoming a regular practice of Ukraine taking out strategic sites that are hundreds of miles inside of Russia and well east of Moscow.
Neptune Missile. Image Credit: Creative Commons.
What is driving this Ukrainian air campaign is the desire to inflict maximum damage on Russian energy infrastructure.