In his September 10 prime-time address to the nation, President Obama said, “Our objective is clear: We will degrade, and ultimately destroy,” ISIS. At the same time, the president said something he’s repeated a number of times since: American forces will not have a combat mission. So this conflict will be conducted strictly through the air. Some of us were concerned at the time that this strategy simply could not work.

More than a month after the president’s pronouncement that our strategy is to destroy ISIS, and more than two months after the first American air strikes against ISIS militants in Iraq, it’s worth assessing how the Obama strategy is faring and to review what leading military figures who served under President Obama are saying about it.

ISIS’s Military Gains Since the U.S. Air Campaign Began

“Islamic State militants have gained territory in Iraq and Syria despite weeks of bombing by the U.S. and its allies, raising questions about the coalition’s strategy of trying to blunt the jihadists’ advance while local forces are being trained to meet the threat on the ground. In Syria, fighters from Islamic State, also known as ISIS, have taken large sections of the city of Kobani in recent days… This comes despite a week of heavy airstrikes around the city to help local Syrian Kurdish fighters keep Islamic State forces from the city center. In Iraq, militant forces operating in a swath of territory the size of California have extended their control of the roads and commercial routes in strategically vital Anbar Province, which connects the capital Baghdad to Jordan and Syria.” – “Militants Advance Despite Airstrikes”, Wall Street Journal, October 13, 2014.

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“Islamic State militants are threatening to overrun a key province in western Iraq in what would be a major victory for the jihadists and an embarrassing setback for the U.S.-led coalition targeting the group. A win for the Islamic State in Anbar province would give the militants control of one of the country’s most important dams and several large army installations, potentially adding to their abundant stockpile of weapons. It would also allow them to establish a supply line from Syria almost to Baghdad and give them a valuable position from which to launch attacks on the Iraqi capital.” – “Islamic State fighters are threatening to overrun Iraq’s Anbar province”, Washington Post, October 9, 2014.

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“Rear Adm. John Kirby, a Pentagon spokesman, acknowledged the Syrian border town could fall to the militants despite the bombings. ‘Air power alone is not going to be enough to save Kobani,’ he said Wednesday. The fighting in Kobani comes amid mounting worries about the effectiveness of the U.S.-led air campaign, which has failed to loosen the militants’ hold on territory in Iraq and Syria or prevent the Islamic State from taking new areas.” – “U.S. steps up airstrikes as Kurds cling to Syrian town”, USA Today, October 7, 2014.

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“U.S.-led airstrikes designed to serve notice on Islamist extremists in Iraq and Syria have also delivered a sobering message to Washington and its allies: Breaking the militants’ grip will be every bit as difficult as they feared…. Islamic State appears to have largely withstood the airstrikes so far and with scant pressure on the ground in Iraq and Syria, the militants have given up little of the territory they captured before the campaign began. ‘The strikes are useless so far,’ said Mohammad Hassan, an activist in eastern Syria battling the regime of Bashar al-Assad. ‘Most of the training camps and the bases were empty when the coalition hit them.’” — “U.S.-led Airstrikes Disrupt Islamic State, But Extremists Hold Territory”, Wall Street Journal, October 5, 2014.

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“After six weeks of American airstrikes, the Iraqi government’s forces have scarcely budged the Sunni extremists of the Islamic State from their hold on more than a quarter of the country, in part because many critical Sunni tribes remain on the sidelines.” – “Weeks of U.S. Strikes Fail to Dislodge ISIS in Iraq”, New York Times, September 22, 2014.

What Military Experts Are Saying About the Obama Strategy

“Flashes of disagreement over how to fight the Islamic State are mounting between President Obama and U.S. military leaders, the latest sign of strain in what often has been an awkward and uneasy relationship… a series of military leaders have criticized the president’s approach against the Islamic State militant group.” — “Rift widens between Obama, U.S. military over strategy to fight Islamic State”, Washington Post, September 18, 2014.

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“I don’t think the president’s plan has a snowball’s chance in hell of succeeding.” — Retired Marine General James Conway, who served as commandant of the Marine Corps under President Obama, September 19, 2014.

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“You just don’t take anything off the table up front, which it appears the administration has tried to do … Half-hearted or tentative efforts, or airstrikes alone, can backfire on us and actually strengthen our foes’ credibility. We may not wish to reassure our enemies in advance that they will not see American boots on the ground.” – Retired Marine General James Mattis, who served as commander of United States Central Command under President Obama, September 18, 2014.

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“Responding to a White House request for options to confront the Islamic State, Gen. Lloyd Austin, the top commander of U.S. forces in the Middle East, said that his best military advice was to send a modest contingent of American troops, principally Special Operations forces, to advise and assist Iraqi army units in fighting the militants, according to two U.S. military officials. The recommendation, conveyed to the White House by Gen. Martin Dempsey, the chairman of the Joint Chiefs of Staff, was cast aside in favor of options that did not involve U.S. ground forces in a front-line role, a step adamantly opposed by the White House.” – “Countering Islamic State will be hard in Iraq and harder in Syria, officials say”Washington Post, September 10, 2014.

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“The reality is, they’re not going to be able to be successful against ISIS strictly from the air or strictly depending on the Iraqi forces or the Peshmerga or the Sunni tribes acting on their own. So there will be boots on the ground if there’s to be any hope of success in the strategy. And I think that by continuing to repeat that [there won’t be troops on the ground], the president in effect traps himself.” – Robert Gates, secretary of defense under President Obama, September 17, 2014.

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“No, Chuck. This is very early days of the strategy. The strategy’s very clear. We’ll do what we can from the air…. But we are not going to be in a ground war again in Iraq. It’s not what is required by the circumstances that we face and even if one were to take that step, which the president has made clear we’re not going to do, it wouldn’t be sustainable. We’ve got to do this in a sustainable way.” – Susan Rice, President Obama’s national security advisor, responding to a question from NBC’s Chuck Todd on whether the administration is reassessing its strategy against ISIS, October 12, 2014. (On the same program Ms. Rice declared that Turkey had made a commitment to allow the United States to use its bases for operations against ISIS. Turkey immediate contradicted Ms. Rice and denied such a deal had been made. This comes a week after Vice President Biden apologized to the United Arab Emirates and Turkey for comments he made that Middle Eastern allies are partly to blame for the strengthening of ISIS.)

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“We don’t do stupid [stuff]” – President Obama describing his foreign policy doctrine in private conversations to reporters, “Obama Warns U.S. Faces Diffuse Terrorism Threats”, New York Times, May 28, 2014.