Silicon Valley is home to a large Ukrainian diaspora - many immigrants from Ukraine have come to work in the tech industry as engineers. Some of them have been using their tech skills to bolster the effort to defend Ukraine, and this army of engineers, coders, hackers, and tinkerers has become a vital part of the country's resistance against Russian aggression.
I have a history with this place, he says. It is part of my destiny and my puzzle. Kramatorsk is the core of the 30% of Ukraine's Donetsk oblast that its military still holds in the face of a grinding Russian advance. This week, the region was the subject of what appears to have been a failed negotiation between Donald Trump and Vladimir Putin.