FILE - In this Jan. 14, 2019 file photo, U.S. Undersecretary of State for Political Affairs David Hale delivers a statement after meeting with Lebanese Prime Minister-designate Saad Hariri, in Beirut, Lebanon. Hale was in Kosovo on Saturday, March 9, 2019, to meet with the country's leaders in an attempt to persuade Pristina to revoke or suspend a tariff on Serb goods so that dialogue with Serbia can resume. (AP Photo/Bilal Hussein, File)
US Undersecretary of State for Political Affairs David Hale travelled to Florida to attend an event with the GCC group. AP

Iran top of the agenda as US hosts GCC defence chiefs