Heavyweight boxers, footballers, Olympic athletes and models are among some of the well known faces who have vowed to fight on the front line for Ukraine as it battles against a Russian invasion.
More than 1,000,000 civilians have now fled Ukraine according to the UN - more than 450,000 of them have crossed the Poland-Ukraine border.
But many more are staying put, making petrol bombs with glass bottles and chemicals, and barricading bomb shelters with metal sheets in scenes not witnessed in Europe since the Second World War.