Weapons inspections

FILE - In this Saturday, April 14, 2018 file photo, UN vehicles carrying the team of the Organization for the Prohibition of Chemical Weapons (OPCW), arrive at hotel hours after the U.S., France and Britian launched an attack on Syrian facilities for suspected chemical attack against civilians, in Damascus, Syria. The OPCW has been thrust once again into the international limelight by a nerve agent attack on a former Russian spy in Britain and allegations of a chemical bombardment on the Syrian city of Douma. It is now attempting to investigate, but its experts have not yet been able to visit the scene. (AP Photo/Bassem Mroue, File)

Syrians sit in front a shop with a shutter painted like the national flag, in Damascus, Syria, Tuesday, April 17, 2018. International inspectors have entered the Syrian town where an alleged chemical attack was carried out earlier this month, Syrian state media reported Tuesday, after they had waited for days in the capital for permission from Syrian and Russian authorities. (AP Photo/Hassan Ammar)

In this Monday, April 16, 2018 photo, people look out of their damage apartment windows just meters away from where the alleged chemical weapons attack occurred in the town of Douma, the site of a suspected chemical weapons attack, near Damascus, Syria. The survivors blamed the attack on the Army of Islam, the powerful rebel group that controlled the town before it was taken over by Syrian government forces this week, although they did not offer evidence to back up their claims.(AP Photo/Hassan Ammar)

A man rides past destruction in the town of Douma, the site of a suspected chemical weapons attack, near Damascus, Syria, Monday, April 16, 2018. Faisal Mekdad, Syria's deputy foreign minister, said on Monday that his country is "fully ready" to cooperate with the fact-finding mission from the Organization for the Prohibition of Chemical Weapons that's in Syria to investigate the alleged chemical attack that triggered U.S.-led airstrikes. (AP Photo/Hassan Ammar)

FILE - In this March 23, 2018, file photo, French President Emmanuel Macron, right, and German Chancellor Angela Merkel speak at a news conference in Brussels. The future of the landmark Iran nuclear deal hangs in the balance and its survival may depend on the unlikely success of last-minute European interventions with President Donald Trump. Macron and Merkel are to visit Washington separately later in April and will likely be the last foreign leaders invested in the deal to see Trump ahead of his mid-May deadline for the accord to be strengthened. (AP Photo/Geert Vanden Wijngaert, File)

United Nations vehicles carry the team of the Organization for the Prohibition of Chemical Weapons (OPCW), arrive at hotel hours after the U.S., France and Britian launched an attack on Syrian facilities to punish President Bashar Assad for suspected chemical attack against civilians, in Damascus, Syria, Saturday, April 14, 2018. A team of the international chemical weapons watchdog arrived in the Syrian capital Damascus to carry out an investigation into the alleged chemical weapons attack on the town of Douma where opposition activist said more than forty people were killed. (AP Photo/Bassem Mroue)

A plane takes off from the British Royal Air Force base in Akrotiri, near the coastal city of Limassol in the eastern Mediterranean island of Cyprus, Thursday, April 12, 2018. British Prime Minister Theresa May summoned her Cabinet back from vacation to discuss possible military action against Syria over an alleged chemical weapons attack in Douma. (AP Photo/Petros Karadjias)

A man rides his bicycle past a banner showing Syrian President Bashar Assad in front the Ottoman-era Hijaz train station in the Syrian capital, Damascus, Syria, Thursday, April 12, 2018. The streets of Damascus were packed with people Thursday evening either going out to shop in one of the city's main markets to hanging out with families and friends at the capital's cafes, restaurants and sweets shops, people mostly appeared not concerned about a possible U.S. strike on the country going on with their lives as usual. (AP Photo/Hassan Ammar)

FILE - This Sunday, April. 8, 2018 file image made from video released by the Syrian Civil Defense White Helmets, shows medical workers treating toddlers following an alleged poison gas attack in the opposition-held town of Douma, in eastern Ghouta, near Damascus, Syria. Chemical weapons have killed hundreds of people since the start of Syria's conflict, with the U.N. blaming four attacks on the Syrian government and a fourth on the Islamic State group. A suspected chemical weapons attack occurred over the weekend in the besieged rebel-held town of Douma that was subjected to a resumed government offensive for three days starting Saturday. (Syrian Civil Defense White Helmets via AP, File)

FILE - In this Nov. 3, 2008 file photo, Libyan leader Moammar Gadhafi attends a wreath laying ceremony in the Belarus capital Minsk. Gadhafi welcomed international inspectors to verify the process of dismantling Libya’s chemical and nuclear weapons programs after Libya’s longtime dictator Moammar Gadhafi unilaterally renounced weapons of mass destruction. (AP Photo/Sergei Grits, File)