West Faces Hurdles Delivering Drone-Fighting Technology to Ukraine

WASHINGTON--More than three months after Russia started using large numbers of Iranian-made drones against Ukraine, the U.S. is struggling to supply effective systems that can meet the threat, according to Western officials and analysts. The Pentagon first said it would provide a counterdrone system called Vampire in August, but only approved the $40 million contract for the weapons in mid-December, according to the company that makes them.