Daniel Pipes writes about a word that many academics and apologists for militant Islam attempt to whitewash: What is Jihad?

The purpose of jihad … is not directly to spread the Islamic faith but to extend sovereign Muslim power (faith, of course, often follows the flag). Jihad is thus unabashedly offensive in nature, with the eventual goal of achieving Muslim dominion over the entire globe.

Jihad did have two variant meanings through the centuries, one more radical, one less so. The first holds that Muslims who interpret their faith differently are infidels and therefore legitimate targets of jihad. (This is why Algerians, Egyptians and Afghans have found themselves, like Americans and Israelis, so often the victims of jihadist aggression.) The second meaning, associated with mystics, rejects the legal definition of jihad as armed conflict and tells Muslims to withdraw from the worldly concerns to achieve spiritual depth.

Jihad in the sense of territorial expansion has always been a central aspect of Muslim life. That’s how Muslims came to rule much of the Arabian Peninsula by the time of the Prophet Muhammad’s death in 632. It’s how, a century later, Muslims had conquered a region from Afghanistan to Spain. Subsequently, jihad spurred and justified Muslim conquests of such territories as India, Sudan, Anatolia, and the Balkans.