The nations moved ahead without the U.S. after worries that the White House has other concerns, officials said.
King Salman replaced his anointed heir with his nephew and named his son as deputy in line to the throne.
A new coalition called the Army of Conquest has proved more cohesive and more effective than expected.
Residents of the Palestinian camp are again at risk of starvation after the arrival of the Islamic State.
Ex-officers from Saddam Hussein’s army have risen to prominent positions in the group’s hierarchy, firmly rooting the extremist movement in Iraq’s bloody past.
Nouri al-Maliki's lingering presence is a challenge to Prime Minister Haider al-Abadi as he tries to build unity.
It is the second provincial capital to fall to rebels since Raqqa was taken by Islamic State rebels two years ago.
There is a danger the conflict could escalate beyond Yemen and spark a wider war.
The man who commanded U.S. troops during the surge in Iraq offers insights into the mistakes, the prosecution and the prospects of the war against the Islamic State.
In the general’s most expansive comments yet on the latest crisis in Iraq and Syria, the former CIA director voiced his growing worries.