On 19 April, one year after the tragic single drowning of hundreds of migrants in the Mediterranean Sea, which marked the beginning of the “migration crisis”, we look back on how the crisis unfolded through 2015, and how the EU developed its comprehensive response. This is the “inside story”, as told by key witnesses from the Council of the EU and the European Commission. It is an attempt to explain the complexities of one of the biggest crises the EU is experiencing. It covers 9 months of crisis in 2015, and is available in 24 EU languages.