After the intervention of Gulf Cooperation Council (GCC) forces in Bahrain, led by Saudi Arabia, the Bahraini government used force against the demonstrators in 2011. Regional powers such as Iran and Saudi Arabia have sought to strengthen their influence in Bahrain during the 2011 uprising, due to the island's geostrategic location, 200 kilometres off the coast of Iran and 25 kilometres from the Saudi coast. 1 In order to contain the 2011 crisis, the Bahraini authorities accused Iran of fomenting chaos and violence in Bahrain by supporting Shia opposition groups during this period. Moreover, Iranian intervention was viewed by the Bahraini authorities as a challenge to state sovereignty.Amidst complex religious ties across the MENA region, it is perhaps trans-state identity that should be taken as the main tool for unpacking the complexity of regional rivalry between Iran and Saudi Arabia, and the local conflicts between the Sunnis and Shia. 2 This is because social structures shape dynamic relationships at different levels through ideological, religious, ethnic and historical links. 3 What is known about the ideological competition between Iran and Saudi Arabia in the MENA region is largely based on empirical studies, which have investigated the impact of religion on the rivalry. 4 According to these studies, following the Islamic Revolution, Iran became a proponent of the Shia minority in the MENA region, while Saudi Arabia supported Sunni groups in the region to strengthen its influence, but this led to instability, due to the increase in so-called proxy wars between Saudi Arabia and Iran in a number of Arab countries.However, in 2011, although some opposition groups called for political reforms and the promotion of democracy, most Sunni groups did not support these demands, due to long-standing communal tensions which possessed a geopolitical element. In the same context, sectarian tensions in Gulf societies have increased significantly, especially during the 2011 crisis in Bahrain. In the Bahraini case, this is due to a perception that any change in the political system in favour of the majority in Bahrain is seen to favour the Shia (and by extension, Iranian aims), thus threatening Saudi