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"Though we have acheived progress, our work is not over. That is why I support the mission of the Arms Control Association. It is, quite simply, the most effective and important organization working in the field today." 

– Larry Weiler
Former U.S.-Russian arms control negotiator
August 7, 2018
OPCW Presses Syria on Chemical Weapons

Latest ACA Resources


September 2020
By Julia Masterson

The Executive Council of the Organisation for the Prohibition of Chemical Weapons (OPCW) voted on July 9 to adopt a decision demanding that Syria cease all use of chemical weapons and come clean on its illegal arsenal.

Bassam Sabbagh, Syria's permanent representative to the OPCW, strongly criticized the agency's findings that Syrian forces were responsible for chemical attacks in March 2017. (Photo: Alexander Klein/AFP/Getty Images)The decision acknowledges that “there are reasonable grounds to believe” that Syria used chemical weapons, marking the OPCW’s most formal finding of a state in violation of the Chemical Weapons Convention (CWC) since the treaty entered into force in 1997.

Syria acceded to the CWC in 2013 and cooperated with international efforts to destroy its declared chemical stockpile, but horrific chemical weapons attacks have continued on an irregular basis since then and throughout the country’s ongoing civil war. The OPCW’s July decision was the international watchdog’s most strident response to Syria’s chemical weapons program since reports of these attacks first resurfaced in 2014. (See ACT, October 2014.)

The UN Security Council was scheduled to convene in August to discuss Syria’s chemical weapons program. A readout from this briefing has not been made public, but, coupled with the OPCW decision and recent investigations by the organization into chemical activity in Syria, renewed attention to Syria’s chemical weapons in multilateral forums has signaled an international commitment to enforce the country’s return to CWC compliance.

The OPCW Executive Council decision in July followed an inaugural April 8 report by the chemical watchdog’s new Investigation and Identification Team (IIT), which is tasked with identifying perpetrators responsible for chemical weapons attacks in Syria. The report attributed responsibility for a series of sarin and chlorine attacks to the Syrian Air Force after finding that sarin dropped over the town of Ltamenah, Syria, in March 2017 shared a unique chemical signature with samples of the nerve agent retained in OPCW labs after the destruction of Syria’s declared stockpile. (See ACT, May 2020.)

In light of these findings, the Executive Council’s new decision imposes a strict 90-day deadline for the Syrian government to declare the remainder of its stockpile, including all chemical agents, their precursors, and the facilities where chemical weapons are developed, produced, and stored. The decision also empowers the OPCW Technical Secretariat to conduct biannual inspections at Syria’s Shayrat and Hama airbases, which were identified in the April IIT report as directly involved in the March 2017 chemical attacks.

In his statement before the Executive Council’s 94th session in July, Bassam Sabbagh, Syria’s permanent representative to the OPCW, slammed efforts to attribute blame for chemical weapons use in Syria to the Syrian government. Damascus has consistently rejected OPCW findings of Syria’s ongoing involvement in chemical weapons attacks, including those outlined in the April IIT report.

The Syrian Foreign and Expatriates Ministry previously called the April report “misleading” and said that Syria “condemns, in the strongest terms, what has come in the report of the illegitimate so-called Investigation and Identification Team, and rejects what has been included in it, in form and content.”

Russia also condemned the April IIT report as flawed and untrustworthy, and China views the organization’s ongoing attribution work as an overstep of the CWC mandate. Neither country expressed great satisfaction with the Executive Council’s July decision.

Mikhail Ulyanov, Russia’s permanent representative to international organizations in Vienna, tweeted on July 9 that “everything was politically motivated. This is another sign of further degradation of [the] OPCW.”

Fu Cong, who heads the Chinese Foreign Ministry Department of Arms Control, called the July decision “politically motivated” and “based on a flawed ‘investigation’” in a tweet also published that day.

The Executive Council’s decision was otherwise met by overwhelming support, including by the U.S. State Department, which applauded the decision in a statement published July 9.

In accordance with the decision, the OPCW director-general will report to CWC states-parties in October on whether Syria fulfilled the prescribed mandate. If Syria fails to do so, the Executive Council could recommend that states-parties vote to take action under CWC Article XII, restricting the country’s rights and privileges under the treaty.

Article XII offers a series of steps to redress a situation and ensure a country’s compliance with the CWC that ultimately ends in referral to the United Nations. Should Syria fail to meet the Executive Council’s 90-day deadline, the issue could soon be in the hands of the UN Security Council, which holds the authority to impose more significant consequences.

The July decision notably reaffirms the Executive Council’s position that perpetrators of chemical weapons attacks must not only be identified but also held accountable. It emphasizes “the importance of affording to the greatest measure of assistance in connection with criminal investigations or criminal proceedings in accordance with international law,” specifically relating to the chemical weapons attacks detailed in the April IIT report.

It also references the UN International, Impartial, Independent Mechanism (IIIM) tasked with assisting in the investigation of crimes committed in violation of international law in Syria since 2011. The IIIM lacks legal authority to prosecute those in violation of international law, but its mandate calls for the collection of evidence to support the criminal proceedings of those tried in national or international courts and tribunals. The Executive Council’s July decision welcomes a memorandum of understanding between the OPCW and the IIIM.