Seven minutes to get it right

Supervisor Alina Ustiuhova and her colleagues working in a secret underground air-defence facility in Kharkiv, Ukraine. Many in Ukraine assume that air-raid alarms are automated. — Brendan Hoffman/The New York Times

AS on most nights, Russian forces were targeting cities across Ukraine, threatening civilians and vital infrastructure.

Gliding across the border were two guided bombs headed in the direction of Kharkiv, Ukraine’s second-largest city.