this is a ukrainian expert from bbc monitoring. from what i am hearing and seeing when talking to ukrainians, it's not exactly working. 0bviously these power blackouts are highly disruptive, but at the same time i am hearing a lot of defiance, i'm hearing a lot of anger, sort of hatred to russian forces who have been doing that. so the whole purpose of doing it is proving to be pointless? if the plan is to sort of sow terror among ukrainian civilians, yes, it's working. because obviously when you hear missiles flying or when you hear the annoying buzzing of those iranian drones that have attacked ukrainian cities in the past few weeks, that is obviously terrifying. the aftermath is very serious because obviously no one wants to be spending hours and hours without electricity.