Ukrainian President Volodymyr Zelensky said Tuesday the West needed to help Ukraine gain air superiority over Russia to give his forces a chance of victory on the battlefield. “We must gain air superiority for Ukraine. Just as we gained superiority in the Black Sea, we can do it. This will allow progress on the ground … Partners know what is needed and in what quantity,” Zelensky said in an address to the World Economic Forum in Davos.