The ancient religious group, concentrated in Iraq, have been targeted for extermination by the so-called Islamic State that seized a number of towns along the Iraq-Syrian border this week.
Israel and Hamas have fought and come to an uneasy cease-fire four times in six years. What makes this round of fighting – and truce talks – different?
Behind Gulf States' opposition to Iran's nuclear program is fear that after decades of international isolation and US animosity, Iran could be coming in from the cold.
Islamic State extremists in Iraq have created a common enemy in the region. But Iran has to tackle deep distrust – and keep nuclear talks on track – to forge a new relationship with its Arab neighbors.