Khalid looks younger than his 15 years. I'm sat opposite him in a tent in Za'atari camp. The sun is beating down on the tent and there are beads of sweat on all our faces. He's too far into his story to notice.

"I was arrested - here, you...

I'm crouched next to Reem, a beautiful young Syrian woman living in the Za'atari refugee camp in Jordan. A head scarf covers her hair and her family hover nearby. She is telling me about her life in Dera'a, Syria, and why they left. She is also crying.

"I remember...

Thousands of Somalis have been forced to flee an ongoing military offensive in Afgooye Corridor, Southern Somalia. More than 5,000 people have arrived, many on foot and carrying nothing, into overcrowded Mogadishu.

I'm standing in Sigale camp, Mogadishu, and the trickle of people struggling in becomes a torrent. Mothers carrying...