Once part of the elite, the fortunes of the country's 'third nationality' have fallen. Politically sidelined for supporting Turkey, Iraq's Turkmen have had enough and are now starting to leave.

The Iraqi PM and Joe Biden stuck to the script, emphasising economic opportunities. No one mentioned US troop withdrawal, but Baghdad's tense relations with Iraqi Kurds did come up.

The history of Kurdish factions' demands and tactics across four states is fascinating, not least for their relationships with the states in question.

Competent administration of the autonomous regions of north-east Syria has Ankara concerned about precedents the Kurds are setting for self-government