Pope Francis and the grand imam of Southeast Asia’s largest mosque vowed to unite against religiously motivated violence and called for “decisive” climate action in a joint declaration Thursday during a visit by Francis to Indonesia.

In a religiously symbolic gesture, the interfaith agreement was signed in the Indonesian capital of Jakarta at the Istiqlal Mosque, which was designed by a Christian architect.

The declaration signed by Francis and Grand Imam Nasaruddin Umar said it was…