Gulf leaders including Saudi Crown Prince Mohammed bin Salman gather with EU heads of state and government in Brussels Wednesday for a summit aimed at averting a "general conflagration" in the Middle East.

The 27-nation European Union is seeking to work more closely with the Gulf Cooperation Council (GCC) -- which brings together Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates -- in addressing conflicts in both the Middle East and Ukraine.