It's 'the difference between push and pull.'

Listen to Nour Ammar's story as she travels the road to asylum.

The flood of migrants and refugees is forcing Europeans to question their values.

The BBC speaks to refugees about Hungary's razor wire border fence.

The networks moving migrants to Europe are highly complex and competitive.

9 have died in the attempt, while thousands of others disrupt trade and traffic.

Many are trying to enter Europe to escape violence and find job opportunities.

A group of Mexican women, "Las Patronas," are helping migrants on their journey north.