A disagreement between major Indonesian religious leaders and the government on how to respond to China’s crackdown on Turkic Muslims raises questions about the Islamic world’s ability to sustain its silence about what amounts to one of the most concerted assaults on the faith in recent history.

A list of 26 predominantly Muslim countries considered sensitive by China reflects Chinese concerns that they could reinforce religious sentiment among the People’s Republic’s Turkic Muslim population with potentially far-reaching consequences if the Islamic world were to take it to task for its crackdown in Xinjiang, the most frontal assault on Islam in recent history.