DUBAI, United Arab Emirates (AP) — The Arab nations that joined the United States in striking the Islamic State group in Syria were unusually open about it, throwing aside their usual secrecy and wariness about appearing too close to Washington. Saudi Arabia even released heroic-looking photos of its pilots who flew the warplanes.

Their boasting reflects the depth of Gulf nations’ concern over the threat of the extremist group sweeping over Iraq and Syria. It also shows their desire to flex some military muscle toward regional rival Iran, a key supporter of the Syrian and Iraqi governments.