Obama's biggest achievement in Syria fell short — and Assad is rubbing it in his face

obama sad frown
obama sad frown

(Barack Obama.Spencer Platt/Getty Images)

The Obama administration has touted its negotiations to remove chemical weapons from Syria as a major diplomatic achievement.

But a new report from the UN Security Council found that the regime of Syrian President Bashar Assad used chemical weapons against civilians in violation of the deal the Obama administration brokered with the help of Russia in 2013.

The report confirmed two instances of chlorine-gas attacks carried out by the Assad regime — one in 2014 and one in 2015.

"The Assad regime has learned over the past five years that the Obama administration will do absolutely nothing to protect Syrian civilians from mass homicide," Fred Hof, a senior fellow at the Atlantic Council and a former special adviser for transition in Syria under then-Secretary of State Hillary Clinton, told Business Insider via email.

"That it should return to the use of weaponized chemicals is not at all surprising."

And the Obama administration was likely aware that Assad's forces were using chemical weapons before the UN report came out.

"This is not a surprise to the administration," Robert Ford, a senior fellow with the Middle East Institute and US ambassador to Syria between 2010 and 2014, told Business Insider. "We have been getting reports about this chlorine gas for more than a year. Some Syrian doctors testified [to Congress] last year. … So they've known for a long time. Now with the UN report, they're more on the hook."

An Obama administration official acknowledged that the US government had suspected the Assad regime was using chlorine gas.

The UN report "back[s] up what we have repeatedly said: time and again the Syrian regime has used industrial chlorine as a weapon against its own people in violation of the Chemical Weapons Convention and UN Security Council Resolution 2118," the official said in a statement to Business Insider.

While the UN resolution on Syria's chemical weapons didn't stipulate that the regime had to get rid of chlorine as a chemical substance, it did prohibit the government from using it as a weapon.

Assad's blatant disregard for the deal doesn't look good for the US, considering that the deal was supposed to be President Barack Obama's defense against critics who blasted him for backing down on his "red line" in Syria.

Syria chemical weapons
Syria chemical weapons

(A Free Syrian Army medical group trains people on how to cope with chemical weapon attacks in Aleppo, December 25, 2013.REUTERS/Ammar Abdullah)

Obama infamously stated in 2012 that his red line with the Assad regime would be the use of chemical weapons. The following year, Assad's forces killed nearly 1,500 people in a chemical-weapons attack.