This is one of two pieces by our contributor James Kitfield, who’s won more Gerald Ford Defense Reporting awards than anyone else (3), on the challenges and mistakes America has made in grappling with the complex threat of global terrorism. As James puts it in his summary sentence: U.S. counterterrorism forces continue to learn and adapt after fifteen plus years of fighting a global jihadist insurgency, as have our determined and adaptive enemies. Read on! The Editor.

American troops have been fighting in Iraq and Afghanistan for so long that the public doesn’t even celebrate their victories or mourn their defeats any more. When U.S.-backed forces this year recaptured the twin capitals of the self-proclaimed caliphate of the Islamic State of Iraq and Syria — Mosul and Raqqa — hardly anyone in America noticed. When reports noted earlier this year that a resurgent Taliban had regained control of roughly 40 percent of Afghanistan that warranted only passing mention in the American media.

There’s an old axiom that democracies, with their fickle political winds and short attention spans, are just not well suited for long wars. With the post-9/11 fight against violent Islamist extremists already well into its second decade, with no end in sight, it’s little wonder that many Americans believe the longest wars in U.S. history have been costly mistakes.

Despite their unpopularity in a war-weary America, the post-9/11 wars looks very different to the men and women who have been in the middle of the fight. Not necessarily better, but more complex and nuanced than the narrative of an endless and futile slog against an unfathomable foe. U.S. military, intelligence and law enforcement agencies have learned and adapted constantly during a decade-and-a-half of fighting this “global war on terrorists,” as have our determined and adaptive enemies. After covering those wars, I spent recent years interviewing many of the top U.S. leaders in this long conflict in an effort to capture those lessons for my book, “Twilight Warriors: The Soldiers, Spies and Special Agents Who Are Revolutionizing the American Way of War” (Basic Books, 2016). Among their many insights the following lessons stand out.

Know Thine Enemy

China’s legendary military strategist Sun Tzu cautioned: “If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.” Yet from the beginning of these long wars U.S. officials have been slow to grasp the ideology, motivations and strategies of our enemies. The resulting miscalculations have cost the nation dearly.

President George W. Bush infamously saw a connection between Al Qaeda and Saddam Hussein’s Iraq which just didn’t exist. We invaded in 2003 and created a self-fulfilling prophecy. President Barack Obama wrongly believed the killing of Osama bin Laden and many of his top lieutenants spelled the end of Al Qaeda, leading him to prematurely withdraw U.S. forces from Iraq and Afghanistan and to underestimate ISIS as the Junior Varsity team of terror. For his part President Donald Trump routinely reacts to new terror attacks with calls to build a border wall and ban immigrants and refugees from Muslim-majority countries, despite the fact that the overwhelming majority of jihadi attacks are conducted by Americans or legal immigrants.

Congress also seems dangerously disengaged from the nature of the war it authorized so long ago. Many lawmakers reacted with incredulous questions when four U.S. Special Forces soldiers died in Niger. What were U.S. troops even doing in that African nation, some of them wondered publicly? Of course, U.S. forces have been killing terrorists and helping to combat Islamist extremist groups and Al Qaeda affiliates in Africa for many years. It’s a familiar list: Al Shabab in Somalia; Al Qaeda in the Arabian Peninsula in Yemen; Al Qaeda in the Islamic Maghreb in the Sahel region; and Boca Haram in Nigeria. Perhaps too few lawmakers read newspapers or watch TV news.

Then there have been the seemingly inexplicable decisions by senior American policymakers. A cursory understanding of Iraq’s sectarian dynamic should have stopped Coalition Provisional Authority head Paul Bremer from his disastrous early decisions to disband the regular Iraqi Army and launch an aggressive “de-Baathification” campaign. That single act is believed by many to have driven Sunni officers and troops into the hands of Al Qaeda in Iraq, where they swam in a swamp of Sunni grievance. The resulting terrorist insurgency took the better part of a decade to subdue.

David Petreaus

“The single biggest lesson we should have learned is that before you invade a country, you need to really understand in a very granular and nuanced way what is going on inside that country,” retired Gen. David Petraeus, the former leader of the Iraqi and Afghan counterinsurgency campaigns and former director of the CIA, told me in an interview. As the former commander of the 101^st Airborne Division during the Iraq invasion, Petraeus remembers being given “Iraqi experts” who couldn’t tell him if the towns he was entering were majority Sunni or Shiite, or where the ethnic border lines were on a map: “Which means they didn’t know anything.”

Then we did it again. We withdrew in 2011 and ISIS simply repeated the cycle, forming its own alliance with former Baathist military officers and stoking Sunni grievances against Iraq’s Shiite Prime Minister Nouri al-Maliki.

“By 2009-2010 we had essentially crushed Al Qaeda in Iraq (AQI), and we had a competing narrative to what the extremists were offering ideologically, which was a more inclusive government in Baghdad and a region moving in a positive direction,” said retired Gen. Stanley McChrystal, who led Joint Special Operations Command (JSOC) in defeating AQI and killing its leader Abu Musab al-Zarqawi, and later commanded all U.S. and allied troops in Afghanistan. “Then the ‘Arab Spring’ started and you had all this instability spread throughout the region, and [leader Abu Bakr] al-Baghdadi and ISIS adapted to those conditions and filled that vacuum. As a consequence ISIS became something like Al Qaeda 3.0.”

Al Qaeda Is An Ideology First, Not A Group

Knowing your enemy means understanding his core motivations and goals. After U.S. counterterrorism forces killed Bin Laden and nearly all of his chief lieutenants in the 2010 – 2011 timeframe, President Obama plausibly argued that “core Al Qaeda” as it existed at the time of the 9/11 terrorist attacks had been decimated. But the bond that truly unites core Al Qaeda with its far-flung affiliates and other Sunni extremist groups is not like a regular army’s bonds of patriotism, discipline and training. They are bound by a transnational ideology, Salafi jihadism. Salafis are fundamentalists who interpret the Quran literally and believe the only true Islam is a mythic version they say was practiced in the days of the Prophet Mohammed and his acolytes in the 7^th century. They believe it is their duty to impose this medieval version of Islam on “apostates” and “non-believers,” by extreme violence if necessary.

ISIS = Al Qaeda 3.0

In the Darwinian selection process of the terror strikes survivors get stronger as they learn and adapt. So it was with al-Baghdadi, the former chief of foreign fighter operations for Al Qaeda in Iraq (AQI), the most lethal of the many affiliates that constitute “Al Qaeda 2.O.” After the 2011 Arab Spring protests and the Syrian regime’s iron-fisted response to a sectarian civil war, al-Baghdadi realized that the same ratlines that AQI had used to funnel foreign fighters from Syria into Iraq to fight the U.S. military could be reversed, sending AQI’s Sunni jihadists the other way to carve a sanctuary out of the rotting corpse of Syria.

Baghdadi had served prison time in a U.S. detention center, where he formed bonds and alliances with a network of former senior Baathist military officers in Saddam Hussein’s army. In 2013-2014, Baghdadi and his jihadists launched a series of daring prison breaks in Iraq to free them. Working together, they launched ISIS’ lightning offensive in the summer of 2014, stunning the world when they overran numerous Iraqi Army divisions and captured roughly a third of both Syria and Iraq, bringing ISIS’ terrorist army to the outskirts of Baghdad. What looked like a military offensive by a ragtag army of ISIS irregulars was actually the result of an unprecedented alliance between Salafi jihadists and former Sunni Baathist military officers whose networks reached deep into corrupted Iraqi Security Forces.

Under al-Baghdadi’s leadership ISIS is certainly an innovative organization. Understanding that it would resonate powerfully in Salafi ideology, Baghdadi proclaimed an Islamic caliphate, and declared himself its caliph, or ruler, attracting an unprecedented 40,000 foreign fighters from across the globe to ISIS’ black banner. Adopting Bin Laden’s strategy of attacking the West as a path towards greater legitimacy in the terror pantheon, he formed an “external affairs unit” that was behind terrorist “spectaculars” in Paris and Brussels. Many former Al Qaeda affiliates switched their allegiance to ISIS.

“The Paris attack was a nightmare, and of particular concern because of the direct connectivity between ISIS and the perpetrators. It had all the hallmarks of a centrally planned, organized and directed attack involving top ISIS leadership,” Nicholas Rasmussen, director of the National Counterterrorism Center (NCTC), told me in a recent interview. The Paris and Belgium attacks were proof that as long as ISIS enjoyed sanctuary from which to recruit and plan attacks on the West, it would remain a mortal threat.

“Safe haven is always high on the list of a terrorist organization’s sources of strength, and ISIS exercising state-like dominion over much of the territory of Iraq and Syria, with all its economic and energy resources, was in many ways the ultimate safe haven. That was incredibly dangerous from a counterterrorism perspective,” he said. “Combine that with ISIS’ unique ability to attract fighters from outside Iraq and Syria, which was far beyond anything Al Qaeda ever aspired to, and suddenly we were dealing with a mass terrorist movement.”

It Takes a Network to Defeat a Network

At their pinnacles, Al Qaeda and ISIS acted not as discrete terrorist organizations but as central command for a globe-spanning terrorist insurgency, with both groups funneling fighters, resources and “lessons learned” among a far-flung network of affiliates that stretched across an arc of instability from Southwest Asia all the way to North Africa.

Under the pioneering leadership of Gen. McChrystal, JSOC (the secretive war-fighting subcomponent of U.S. Special Operations Command), adapted by incubating its own network-centric model of military operations. That model relied on an unprecedented synergy that developed in the war zones between Special Operations Forces, intelligence and law enforcement agencies, and conventional military forces. The model of operations that McChrystal helped pioneer was most closely associated in the public mind with drone strikes and the relentless counterterrorism raids such as Operation Neptune Spear, which brought Osama bin Laden to justice. At its hot core, this new, network-centric style of warfare is predicated on hunting individual terrorists and other extremists who hid in the dark corners of the world, and in plain sight as well.

The intense battle rhythm behind that new style of warfare was unlike anything that had come before it. JSOC’s multiagency joint task forces and intelligence fusion centers combined the skills of disparate national and international players into a unified, mission-focused whole. The streamlined operations enabled by the network greatly condensed the traditional military-targeting cycle of “find, fix and finish” by constantly incorporating intelligence “exploitation and analysis,” creating what the counterterrorism community called an “F3EA” style of operations. Within that operational model the once bright lines between intelligence gathering and operational targeting disappeared.

The synergies required of that new style of operations explained major reorganizations of the Central Intelligence and Defense Intelligence agencies, the emergence of the National Counterterrorism Center as a major, multiagency coordinating node in the network, and the National Security Agency’s (NSA) storage of vast amounts of electronic metadata in search of “patterns of life” among terrorists and their networks. JSOC’s mantra “it takes a network to defeat a network” became the rallying cry of a man-hunting juggernaut that McChrystal described to me as “the Amazon.com of counterterrorism.”

“The epiphany for me came as we were studying Al Qaeda operations and realized that it didn’t act like a typical hierarchal terrorist organization, with ponderous, top-down execution. It moved so fast that we were constantly asking ourselves, ‘How did they do that?’” McChrystal recalled. After that it became all about building a globe-spanning U.S. counterterrorism network along with allies, he said, and connecting far-flung military, intelligence and law enforcement entities together focused on a common contextual understanding of the threat, and on winning this one fight.

“The biggest epiphany of all was that once we connected all these nodes and the network was working, I didn’t have to make a lot of big decisions,” he said. “The network learns and it knows what to do! Through the wisdom of the crowd, the network adapted organically and figured out the right strategy.”

Counterterrorism vs. Counterinsurgency

Four times in this long war U.S. military commanders have confronted a dangerous tipping point where a campaign of terrorism transforms into a much larger and more widely-supported insurgency powerful enough to compete with government forces for control of territory: Iraq in 2006-7; Afghanistan in 2009-10; and Iraq and Afghanistan again in 2014-2017. At that point a strictly counterterrorism campaign of targeted strikes on terrorist leaders becomes ineffective in countering a determined and dug-in insurgency. A more  manpower intensive counterinsurgency campaign is required to clear enemy-held ground, hold it to protect the local population, and build governance as a means to win the populace to the government’s side.

Disagreements about the efficacy of counterterrorism versus counterinsurgency strategies, both between military and civilian leaders and among the military fraternity itself, led to some of the costliest mistakes of the post-9/11 wars. U.S. commanders and their civilian masters in Iraq 2003-2005 were slow to even recognize the insurgency there until it was almost too late. Disagreements over a counterterrorism versus a counterinsurgency strategy between the White House and McChrystal’s team in Afghanistan in 2009 eroded critical trust between them, ultimately leading to McChrystal’s dismissal. If the Iraqi government does not rebuild and project governance into the recaptured Sunni majority city of Mosul, then its recent victory there against ISIS is also likely to prove temporary.

Petraeus, who replaced McChrystal in Afghanistan after leading the successful counterinsurgency campaign in Iraq, understood the mission as keeping the country from once again becoming an Al Qaeda sanctuary, which required halting the momentum of the Taliban insurgency, and accelerating the training of Afghan security forces so they could defend their own country.

“And you can’t do that with a counterterrorism strategy of man-hunting alone! You can hunt men all day long, but if you don’t clear territory and hold it, then the enemy is just going to keep regenerating,” Petraeus told me in our interview for Twilight Warriors. “So anyone who believed we could win in Afghanistan with counterterrorism operations alone was mistaken. There is no foundation for that idea whatsoever.”