Russia on Sunday ordered increased firepower and training for the navy to counter the threat of Ukrainian air and naval drones after a series of strikes on Russian warships. “There must be training for personnel every day. Training on how to repel attacks from the air and by uncrewed boats,” Defense Minister Sergei Shoigu said in a statement during a visit to the Black Sea fleet in southern Russia. Shoigu “ordered the installation of additional firepower, large-caliber machine gun systems to defeat enemy drones,” the Defense Ministry statement said. The Black Sea has been a vital battleground …