When the blockade was imposed on Qatar on June 5, 2017, few expected it to last as long as it has. One year on, what started as an expression of frustration with, and attempt to change, Qatar's independent foreign policy, has, in fact, deepened the political divisions and, if anything, made it more difficult to envisage a return to Gulf unity. 

Today, nobody can deny that overall the blockade has had a negative impact on all concerned, including Saudi Arabia, which ironically ended up diminishing the very same Gulf security it professes to protect from an expansionist Iran.

The full article originally appears in Al Jazeera English.