Ukraine's battle-hardened cities show how they've prepared for total blackouts from Russian energy strikes

Fuente: Business Insider

A woman charges a smartphone at an 'invincibility point' in Ukraine. Denys Poliakov/Global Images Ukraine via Getty ImagesTwo eastern Ukrainian regions suffered mass blackouts this week, their worst since the war started. Authorities said they'd activated hundreds of "invincibility points," among other measures, in response.