Russia is jamming 'sophisticated' US weapons being used in Ukraine, making them useless, report says

• Russia is able to disable US-made Ukrainian missiles because some use GPS signals. 
• Both sides are waging a battle to jam the electronics of missiles and other weapons. 
• Russia's electronic warfare capability has evolved during the conflict. 

Russia is disabling "sophisticated" missiles provided to Ukraine by its Western allies by scrambling their GPS coordinates, according to reports.