This week marks 100 days since four Arab states began a blockade against Qatar, sparking a diplomatic crisis.

Saudi Arabia, the United Arab Emirates, Bahrain and Egypt accuse Qatar of supporting "extremism", which it denies.

Saudi Arabia usually takes the lead in Gulf affairs, but what is interesting this time is the prominence of the UAE.

Al Jazeera's Hashem Ahelbarra explains.

Middle East, Qatar, Politics