This article concerns the effects of globalization on Islam in the Bamum kingdom, Cameroon. Since its introduction into the kingdom at the beginning of the nineteenth century, Islam has been closely intertwined with ethnicity and the local political system has been consensual. Politically, Bamum royalty – as the secular arm of central power – has had the unconditional support of Islam. For a long period, ‘Bamum Islam’, with its origins in the Tijaniya tariqa, withdrew in on itself, unlike other parts of Africa where sufism is dominant. But since the start of the 1990s, both political liberalization and Isalmic modernity have had their effects in Bamum through what is called in Foumban the ‘Wahhabite’ infiltration, namely, all those who have studied in Sudan, Egypt, Saudi Arabia and Kuwait. The politico-religious foundation on which were based both the legitimacy of the royal household and the unity of the Bamum people has been undermined and disabled, provoking a crisis of identity. This crisis is evidenced, on the one hand, by the politicization of the Tijaniya on behalf of one opposition party, reforms and the destabilization of the dominant position of the Tijaniya, and, on the other hand, by a Tijaniya insurrection, open defiance and the weakening of the position of the Sultan-King of Bamum.