INSIDE a small tent, Zhan Hryshin was busy fiddling with his laptop. Spring breeze in the city of Lviv, Ukraine, felt chilling still, but he took his shirt off anyway. The curly-haired man only wrapped himself in a piece of blanket. Hryshin has become a refugee due to the Russian invasion of his country.

The 25-year-old was a resident of Odessa, a port city in southern Ukraine. Odessa was among the regions bombarded with missiles when Russia&rsq