Since the Iranian Revolution of 1979, Iran has promoted an aggressive variant of Shi’ite Muslim doctrine called ” Khomeinism” – which is based, in part on a deeply held belief the late Ayatollah Khomeini – who became its Supreme Leader-was a Saint, whose every word was to be considered Divine Law.
The Ayatollah believed Iran could help build an ” Islamic Crescent ” that would run from sea to sea, span continents,and -eventually-conquer the world (once the Satanic Americans, Israelis, and other obstructive forces had been destroyed or neutralized.)
In very short order, the Khomeini doctrines began to appear in northern Nigeria ,which had a tiny Shi’ite population . It was almost laughable at the time,but Khomeinism quickly took root-and began to spread; and is today a force to be reckoned with.
Sources and further details here: http://www.ctc.usma.edu/posts/the-islamic-movement-and-iranian-intelligence-activities-in-nigeria