On the meaning of the ISIS flag: The white banner at the top of the flag reads: There is no god but Allah. Mohammad is the messenger of Allah. This phrase is a declaration of faith used across Islam, and is known as the shahada. Underneath is a white circle emblazoned with black writing reading "Mohammed is the messenger of God", which is meant to resemble the Prophet’s seal, similar to that used to close an envelope.

More from Kashmira Gander

View all quotes →