"At the top the organization is the self-declared leader of all Muslims, Abu Bakr al-Baghdadi, a radical chief executive officer of sorts, who handpicked many of his deputies from among the men he met while a prisoner in American custody at the Camp Bucca detention center a decade ago.
He had a preference for military men, and so his leadership team includes many officers from Saddam Hussein’s long-disbanded army.”
"Political changes after the American invasion accelerated their rise. Members of Mr. Hussein’s Baath Party were barred from government positions, and the political dominance of Iraq’s Shiite majority made many Sunnis feel disenfranchised.
“After 2003, what did these guys have to do but get more radical?” Mr. Knights said.”