The commitment by the United States has not changed in the Gulf Arab allies despite recent reports of a shift in US force posture in the region, US Special Representative for Iran Brian Hook said in an interview with CNBC.

Brian Hook (L), the US special representative on Iran, listens to a member of the Saudi military forces at an army base in al-Kharj, south of the Saudi capital Riyadh, on June 21, 2019. (AFP)