The message to countries involved in what it called the "crusader campaign" was delivered by a man dressed in fatigues and a turban, and identified in subtitles as Al Ghareeb the Algerian.
White House officials stressed that no proposal has been presented to Mr. Obama and added that they anticipated no decision in the next few weeks.
Some brave would-be militia organizers say they want to form teams of military and intelligence veterans to battle Islamic State overseas. But they mostly appear to be fantasists trying to raise money.
Bill-O did his best to give potential presidential candidate Ben Carson some cover after he stepped in it at the RNC winter meeting this week.
“When it comes to the topic of religion, he’s not very sophisticated in the way that he thinks,” Aslan said.
The blitz also targeted a little-known network called Khorasan, in hopes of paralyzing it before it could carry out what American officials feared would be a terrorist attack in the West.