The papal visit to Thailand and Japan will give Pope Francis the chance to address five key themes of his social teaching, and two general questions about his pontificate.

The five key themes are human trafficking, nuclear weapons, sustainable energy, solidarity between generations and immigration. The two general questions are missionary activity and the Pope’s relations with the United States.

Thailand is one of the world centres for sex slavery and human trafficking. The issue has become quite prominent in the Holy See’s international diplomacy in recent years, and in Thailand Pope Francis will be able to draw attention to what is an international scourge.