Contractors would still be required to work with the Afghan government, just like US and NATO forces, she writes, who may not be receptive to their expanded presence.

Contractors also don't integrate well with local political goals and forces, which is essential in counterinsurgency operations.

Avant also noted that empowering local partners in environments like Afghanistan had been shown to facilitate the rise of warlords — as generally happened under the East India Company when it worked in there in the 19th century.

Privatizing the war effort in Afghanistan would likely reduce some of the costs, however — a point that White House assistant Sebastian Gorka emphasized when he defended consultations with Prince in a CNN interview with Jake Tapper.

"If you look at Erik Prince’s track record, it's not about bilking the government. It's about the opposite," Gorka said. "It's about saving the US taxpayer money. It's about creating indigenous capacity ... This is a cost-cutting venture."

Despite that fact that Prince and Blackwater secured extensive and lucrative contracts under both former President George W. Bush and former President Barack Obama, Gorka described consultations with the Blackwater founder as a break with the tired, uninformed thinking inculcated by Beltway insularity.

"We open the door here at the White House to outside ideas. Why?" Gorka said, adding, "Because the last eight years, in fact the last 16 years, Jake, to be honest, disastrous. The policies that were born in the beltway by people who’ve never worn a uniform, the people that were in the White House like Ben Rhodes, Colin Kahl, they helped create the firestorm that is the Middle East, that is ISIS today. So we are open to new ideas, because the last 16 years have failed American national interest and the American taxpayer."

When Tapper defended the qualifications of the people advising Obama, Gorka objected, calling Rhodes' master's degree in creative writing — "fictional writing," he said — "disastrous."

"I think Gorka spends more time following Twitter and prepping his media appearances than he does thinking seriously about critical national-security issues," Kahl, who was deputy assistant to the president and national security adviser to the vice president from October 2014 to January 2017, told Business Insider.

(Sebastian Gorka, deputy assistant to President Donald Trump, at the Conservative Political Action Conference, February 24, 2017.Alex Wong/Getty Images)

"No US administration has had all the answers to the Middle East," continued Kahl, who is now a professor in the Security Studies program at Georgetown University.

"But the two biggest sources of the 'firestorm' Gorka refers to were the invasion of Iraq, which gave birth to the forerunner of ISIS and created a vacuum filled by Iran, and the 2011 Arab Spring that upended the state system across the Middle East and set in motion a series of bloody proxy wars," he added. "Neither of these key events were a consequence of Obama's policies."

Kahl also cited specific accomplishments of the Obama administration, among them eroding Al Qaeda leadership, securing the Iran nuclear deal, and setting the stage for the destruction of ISIS.

Blaming Obama for the rise of ISIS has become prominent Republican talking point since the US withdrew from Iraq at the end 2011.

(Vice President Joe Biden and his national-security adviser, Colin Kahl, at a meeting in Washington, February 24, 2016.(AP Photo/Andrew Harnik))

Trump himself has attributed the group's emergence to both Obama and Hillary Clinton, who was Obama's secretary of state and Trump's opponent in the presidential election.

The withdrawal date had been set by the Bush administration, but conservatives have criticized Obama for not making a deal with Baghdad to keep US troops on the ground there, which they say could've kept ISIS from gaining traction with Iraq's Sunni minority.

Defenders have pointed to the US' inability to quell insurgency in the country prior to its withdrawal, as well as Iraqi officials' refusal to let US troops stay, as evidence that a protracted deployment was impossible and would have changed little. (Others attribute ISIS' appearance to Bush's dissolution of the Iraqi military.)

Since taking office, Trump appears to have embraced a more aggressive policy in the Middle East, underscored by several military engagements with pro-Syrian government forces in that country and by his hearty embrace of Saudi Arabia to the apparent detriment of unity among Gulf countries.

Kahl invoked these developments as reason for concern going forward.

"It is difficult to see how Trump's approach, which combines a shoot-first mentality and an instinct to give regional autocrats a blank check to drag us into their sectarian conflicts, will make the region more secure or America safer," he told Business Insider in an email.

"And the fact that Gorka and others in the White House are seriously contemplating turning America's longest war in Afghanistan over to private military contractors who prioritize profit over the national interest is very troubling."

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