As Ukraine repeatedly strikes warehouses of the e-commerce site Wildberries, Tatyana Kim, its billionaire co-founder, faces her biggest test yet.

© Olga Maltseva/Agence France-Presse — Getty Images

Ukrainian drones have increasingly targeted warehouses belonging to Wildberries, which many Russians rely on as the country’s largest e-commerce business.

© Anastasia Barashkova/Reuters