If you have followed the United States’ war on Iraq, you have undoubtedly heard of the strained relations, between these two branches of Islam, which have occasionally broken out into violent, internecine conflicts. In just about every respect, the tensions between these two communities of belief are standard religious conflicts; they resemble the European wars of religion that broke out during the Protestant Reformation. You can see elements of the Sunni-Shia schism in the Iran-Saudi Arabia proxy war, which has devastated Yemen.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.