A three- and four-year-old brother and sister scuttle around together on a patch of grass. At first glance they are a pair of happy children playing. But on closer observation, their skin is dry and their hair unwashed. Their clothes are dirty. The boy has a large wound on his forehead reaching to the side of his left eye and the girl has a swollen sore on her right cheek.
The Kurdish siblings are among hundreds of refugees sleeping rough in a woods in northern France in makeshift camps controlled by smugglers. Along with their parents, they are among a growing number of families enduring the cold temperatures so they can leap into the back of lorries or set sail in small boats in attempt to cross to Britain.
Refugees? How many countries have they passed through? Why Britain?