Which group includes the subdivision of leadership under Imam-is?

The group that includes the subdivision of leadership under Imam-is is known as the Shia branch of Islam, specifically the Twelver Shia sect. In this context, Imam-is refer to the belief in a line of twelve Imams, who are considered the spiritual and political successors to the Prophet Muhammad. These Imams are believed to be divinely appointed and infallible, serving as guides for the community. The concept of Imamate is central to Shia theology and identity.