Complex sentence: There has been much speculation about possible foreign involvement in facilitating the creation of the ADFL, most of it swirling around the Rwandan President Paul Kagame and Ugandan President Yoweri Museveni, both of whom were personal acquaintances of Kabila.
Split into simpler sentences: There has been much speculation about foreign involvement in facilitating the creation of the ADFL. Most of it swirls around Rwandan President Paul Kagame and Ugandan President Yoweri Museveni, both of whom were personal acquaintances of Kabila.