Complex sentence: The events received considerable attention in the U.S. and elsewhere, attracted protesters from outside the region, and generated a vigorous debate about the relationship between law enforcement and African Americans as well as created a national dialogue about police use of force doctrine in Missouri and nationwide.
Split into simpler sentences: The events received considerable attention in the U.S. and elsewhere, attracting protesters from outside the region. They generated a vigorous national debate about the relationship between law enforcement and African Americans, and about police use of force doctrine in Missouri and nationwide.