Four days after Russia began dropping artillery shells on Kyiv, Misha Katsiurin, a Ukrainian restaurateur, was wondering why his father, a church custodian living in the Russian city of Nizhny Novgorod, had not called to check on him.

"There is a war, I’m his son, and he just doesn’t call,” Katsiurin, who is 33, said in an interview. So, Katsiurin picked up the phone and let his father know that Ukraine was under attack by Russia.

"I’m trying to evacuate my children and my wife — everything is extremely scary,” Katsiurin told him.