Muhammed's status as the prophet of Islam overshadows his role as a military commander, particularly among Westerners.  In this work, veteran military historian Richard A. Gabriel, although not a specialist in Islamic studies, tries to throw light on Muhammed's military career, and also on the ways in which he may have shaped Islamic ways of war.   He does a pretty good job.

The first three chapters cover the Arabian Peninsula in the seventh century, providing the physical, political, and cultural setting, and recent political and military developments in the region, most notably the great Romano-Persian War of 602-629, which left both empires exhausted.  In these chapters he also provides a comprehensive look at the conduct of war in the region, from its political and cultural underpinnings to the organization and equipping of armies, and more.  Gabriel goes on to discuss Muhammed's radical reforms in Arab military practice that led to enormous success in the field.  A chapter follows on Muhammed's life, religious awakening, and the foundation of Islam.  The next eight chapters discuss, in considerable detail Muhammed's campaigns.  These are well described and the author has provided some fairly understandable maps.  The book ends with a look at Muhammed's legacy, religious as well as military, which laid the foundation for the Islamic conquest of a major chunk of the world over the next couple of generations.