Ukraine is developing new technology to blast Russian drones out of the sky for a fraction of the cost of American-made weapons used to counter Moscow’s massive escalation in drone warfare this summer,

Ukraine’s military commander in charge of the country’s drone warfare program urged the US and NATO countries alike on Wednesday to learn from Kyiv’s use of the technology on the battlefield so in the future there are not “hard questions from your children [about] when [their] father will come back.