All foreign flights to and from the Iraqi Kurdish capital, Erbil, have been suspended, as Baghdad increases pressure on the Kurds over this week's independence referendum. Safin Hamed / AFP
All foreign flights to and from the Iraqi Kurdish capital, Erbil, have been suspended, as Baghdad increases pressure on the Kurds over this week's independence referendum. Safin Hamed / AFP

Kurds need to combine diplomacy, strategy and persistence to advance their cause