Islamic State’s 52-second trailer“Flames of War” opens with a black-clad extremist blasting a U.S.-made tank into smoke and shrapnel, a Hollywood-style message to the U.S. and its allies about what they can expect for intervening in the Middle East again. The nation that has produced Microsoft, Apple and Google now finds itself playing catch-up on Facebook, YouTube and Twitter with an extremist group rooted in 7th Century Arabia.

Indonesia, home to the world’s largest population of Muslims, had some words of advice for the United States for defeating the extremist group Islamic State and other like-minded jihadists.

With the Islamic State waving its black flag at the gates of Baghdad, Persian Gulf nations have decided to set aside their differences. “Radical Islam is a profound threat to us and our values,” said Yousef al-Otaiba, the UAE’s ambassador to the United States. “We need to confront it as a team.”

Former US public diplomacy officials fear the sophisticated, social media borne propaganda of the Islamic State militant group (Isis) is outmatching American efforts at countering it.  Aimed less at Isis itself than at potential supporters, a bevy of US diplomatic and communications initiatives seek to undermine Isis’s portrayal of itself as an authentic, successful Islamic resistance.

A marquee has been erected on the driveway of the United Nations to deprive potential snipers of a line of site, as world leaders lever themselves out of their limousines. Even inside the headquarters building, blue partitions have been put up, presumably to sequester the leaders from the journalists who work here day in day out. With some 140 heads of state and government scheduled to attend, a record-breaking number, leaders' week at the United Nations is like no other.

As the Islamic State group battles across Syria and Iraq, pushing back larger armies and ruling over entire cities, it is also waging an increasingly sophisticated media campaign that has rallied disenfranchised youth and outpaced the sluggish efforts of Arab governments to stem its appeal.

An unconfirmed report suggests the Islamic State may have beheaded a second British hostage Saturday, less than a week after the execution of another UK citizen, and on the same day the militants released 49 Turkish hostages from Iraq unharmed.

France conducted its first airstrike against the Islamic State militant group in Iraq Friday, destroying a logistics depot, French President Francois Hollande announced. Although some countries have contributed humanitarian aid or military equipment to the Iraqi army in its battle against the advancing jihadists, France is the first nation to join the US-led air campaign against IS.