What ISIS Really Wants

Choudary, 48, is the group's former leader. He frequently appears on cable news, as one of the few people producers can book who will defend the Islamic State vociferously, until his mike is cut. He has a reputation in the United Kingdom as a loathsome blowhard, but he and his disciples sincerely believe in the Islamic State and, on matters of doctrine, speak in its voice. Choudary and the others feature prominently in the Twitter feeds of Islamic State residents, and Abu Baraa maintains a YouTube channel to answer questions about Sharia.

Since September, authorities have been investigating the three men on suspicion of supporting terrorism. Because of this investigation, they had to meet me separately: communication among them would have violated the terms of their bail. But speaking with them felt like speaking with the same person wearing different masks. Choudary met me in a candy shop in the East London suburb of Ilford. He was dressed smartly, in a crisp blue tunic reaching nearly to his ankles, and sipped a Red Bull while we talked.

Before the caliphate, "maybe 85 percent of the Sharia was absent from our lives," Choudary told me. "These laws are in abeyance until we have khilafa"—a caliphate—"and now we have one." Without a caliphate, for example, individual vigilantes are not obliged to amputate the hands of thieves they catch in the act. But create a caliphate, and this law, along with a huge body of other jurisprudence, suddenly awakens. In theory, all Muslims are obliged to immigrate to the territory where the caliph is applying these laws. One of Choudary's prize students, a convert from Hinduism named Abu Rumaysah, evaded police to bring his family of five from London to Syria in November. On the day I met Choudary, Abu Rumaysah tweeted out a picture of himself with a Kalashnikov in one arm and his newborn son in the other. Hashtag: #GenerationKhilafah.

The caliph is required to implement Sharia. Any deviation will compel those who have pledged allegiance to inform the caliph in private of his error and, in extreme cases, to excommunicate and replace him if he persists. ("I have been plagued with this great matter, plagued with this responsibility, and it is a heavy responsibility," Baghdadi said in his sermon.) In return, the caliph commands obedience—and those who persist in supporting non-Muslim governments, after being duly warned and educated about their sin, are considered apostates.

Choudary said Sharia has been misunderstood because of its incomplete application by regimes such as Saudi Arabia, which does behead murderers and cut off thieves' hands. "The problem," he explained, "is that when places like Saudi Arabia just implement the penal code, and don't provide the social and economic justice of the Sharia—the whole package—they simply engender hatred toward the Sharia." That whole package, he said, would include free housing, food, and clothing for all, though of course anyone who wished to enrich himself with work could do so.

Abdul Muhid, 32, continued along these lines. He was dressed in mujahideen chic when I met him at a local restaurant: scruffy beard, Afghan cap, and a wallet outside of his clothes, attached with what looked like a shoulder holster. When we sat down, he was eager to discuss welfare. The Islamic State may have medieval-style punishments for moral crimes (lashes for boozing or fornication, stoning for adultery), but its social-welfare program is, at least in some aspects, progressive to a degree that would please an MSNBC pundit. Health care, he said, is free. ("Isn't it free in Britain, too?," I asked. "Not really," he said. "Some procedures aren't covered, such as vision.") This provision of social welfare was not, he said, a policy choice of the Islamic State, but a policy obligation inherent in God's law.

III. The Apocalypse

All Muslims acknowledge that God is the only one who knows the future. But they also agree that he has offered us a peek at it, in the Koran and in narrations of the Prophet. The Islamic State differs from nearly every other current jihadist movement in believing that it is written into God's script as a central character. It is in this casting that the Islamic State is most boldly distinctive from its predecessors, and clearest in the religious nature of its mission.

In broad strokes, al-Qaeda acts like an underground political movement, with worldly goals in sight at all times—the expulsion of non-Muslims from the Arabian peninsula, the abolishment of the state of Israel, the end of support for dictatorships in Muslim lands. The Islamic State has its share of worldly concerns (including, in the places it controls, collecting garbage and keeping the water running), but the End of Days is a leitmotif of its propaganda. Bin Laden rarely mentioned the apocalypse, and when he did, he seemed to presume that he would be long dead when the glorious moment of divine comeuppance finally arrived. "Bin Laden and Zawahiri are from elite Sunni families who look down on this kind of speculation and think it's something the masses engage in," says Will McCants of the Brookings Institution, who is writing a book about the Islamic State's apocalyptic thought.

During the last years of the U.S. occupation of Iraq, the Islamic State's immediate founding fathers, by contrast, saw signs of the end times everywhere. They were anticipating, within a year, the arrival of the Mahdi—a messianic figure destined to lead the Muslims to victory before the end of the world. McCants says a prominent Islamist in Iraq approached bin Laden in 2008 to warn him that the group was being led by millenarians who were "talking all the time about the Mahdi and making strategic decisions" based on when they thought the Mahdi was going to arrive. "Al-Qaeda had to write to [these leaders] to say 'Cut it out.' "

For certain true believers—the kind who long for epic good-versus-evil battles—visions of apocalyptic bloodbaths fulfill a deep psychological need. Of the Islamic State supporters I met, Musa Cerantonio, the Australian, expressed the deepest interest in the apocalypse and how the remaining days of the Islamic State—and the world—might look. Parts of that prediction are original to him, and do not yet have the status of doctrine. But other parts are based on mainstream Sunni sources and appear all over the Islamic State's propaganda. These include the belief that there will be only 12 legitimate caliphs, and Baghdadi is the eighth; that the armies of Rome will mass to meet the armies of Islam in northern Syria; and that Islam's final showdown with an anti-Messiah will occur in Jerusalem after a period of renewed Islamic conquest.

The Islamic State has attached great importance to the Syrian city of Dabiq, near Aleppo. It named its propaganda magazine after the town, and celebrated madly when (at great cost) it conquered Dabiq's strategically unimportant plains. It is here, the Prophet reportedly said, that the armies of Rome will set up their camp. The armies of Islam will meet them, and Dabiq will be Rome's Waterloo or its Antietam.

"Dabiq is basically all farmland," one Islamic State supporter recently tweeted. "You could imagine large battles taking place there." The Islamic State's propagandists drool with anticipation of this event, and constantly imply that it will come soon. The state's magazine quotes Zarqawi as saying, "The spark has been lit here in Iraq, and its heat will continue to intensify … until it burns the crusader armies in Dabiq." A recent propaganda video shows clips from Hollywood war movies set in medieval times—perhaps because many of the prophecies specify that the armies will be on horseback or carrying ancient weapons.

Now that it has taken Dabiq, the Islamic State awaits the arrival of an enemy army there, whose defeat will initiate the countdown to the apocalypse. Western media frequently miss references to Dabiq in the Islamic State's videos, and focus instead on lurid scenes of beheading. "Here we are, burying the first American crusader in Dabiq, eagerly waiting for the remainder of your armies to arrive," said a masked executioner in a November video, showing the severed head of Peter (Abdul Rahman) Kassig, the aid worker who'd been held captive for more than a year. During fighting in Iraq in December, after mujahideen (perhaps inaccurately) reported having seen American soldiers in battle, Islamic State Twitter accounts erupted in spasms of pleasure, like overenthusiastic hosts or hostesses upon the arrival of the first guests at a party.

The Prophetic narration that foretells the Dabiq battle refers to the enemy as Rome. Who "Rome" is, now that the pope has no army, remains a matter of debate. But Cerantonio makes a case that Rome meant the Eastern Roman empire, which had its capital in what is now Istanbul. We should think of Rome as the Republic of Turkey—the same republic that ended the last self-identified caliphate, 90 years ago. Other Islamic State sources suggest that Rome might mean any infidel army, and the Americans will do nicely.

After its battle in Dabiq, Cerantonio said, the caliphate will expand and sack Istanbul. Some believe it will then cover the entire Earth, but Cerantonio suggested its tide may never reach beyond the Bosporus. An anti-Messiah, known in Muslim apocalyptic literature as Dajjal, will come from the Khorasan region of eastern Iran and kill a vast number of the caliphate's fighters, until just 5,000 remain, cornered in Jerusalem. Just as Dajjal prepares to finish them off, Jesus—the second-most-revered prophet in Islam—will return to Earth, spear Dajjal, and lead the Muslims to victory.

"Only God knows" whether the Islamic State's armies are the ones foretold, Cerantonio said. But he is hopeful. "The Prophet said that one sign of the imminent arrival of the End of Days is that people will for a long while stop talking about the End of Days," he said. "If you go to the mosques now, you'll find the preachers are silent about this subject." On this theory, even setbacks dealt to the Islamic State mean nothing, since God has preordained the near-destruction of his people anyway. The Islamic State has its best and worst days ahead of it.