On May 13, coordinated suicide bombings struck three churches in the Indonesian city of Surabaya; a fourth bombing occurred at the local police station the next day. Islamic State (IS) claimed responsibility for the attacks. To Ilan Berman and James Clad, the incident is indicative of a growing threat to the overwhelmingly Muslim country:

After the major conflicts of the 20th century, the United Nations and its predecessor organizations sought to resettle millions of refugees in new homes. But, as Adi Schwartz and Einat Wilf explain in The War of Return, the UN has taken a different approach to those Arabs who fled their homes during Israel’s War of Independence, seeking instead to keep them and their descendants in a permanent state of a homelessness. Matti Friedman writes in his review: