Syrians living in Jordan and activists hold a large Syrian opposition flag during a demonstration near the Syrian embassy in Amman
REFILE - CLARIFYING CAPTION Syrians living in Jordan and activists hold a large Syrian opposition flag during a demonstration marking the first anniversary of the chemical attack on the Ghouta suburb of Damascus, near the Syrian embassy in Amman August 21, 2014. REUTERS/Muhammad Hamed (JORDAN - Tags: POLITICS CIVIL UNREST CONFLICT ANNIVERSARY)
Syrians living in Jordan and activists wave a Syrian opposition flag during a demonstration near the Syrian embassy in Amman
REFILE - CLARIFYING CAPTION Syrians living in Jordan and activists wave a Syrian opposition flag as they shout slogans against Syrian President Bashar al-Assad during a demonstration marking the first anniversary of the chemical attack on the Ghouta suburb of Damascus, near the Syrian embassy in Amman August 21, 2014. REUTERS/Muhammad Hamed (JORDAN - Tags: POLITICS CIVIL UNREST CONFLICT ANNIVERSARY)
Syrian man living in Jordan holds a Syrian opposition flag and a Jordanian national flag in front of a line of Jordanian police standing guard during a demonstration near the Syrian embassy in Amman
REFILE - CLARIFYING CAPTION A Syrian man living in Jordan holds a Syrian opposition flag (front) and a Jordanian national flag in front of a line of Jordanian police standing guard during a demonstration marking the first anniversary of the chemical attack on the Ghouta suburb of Damascus, near the Syrian embassy in Amman August 21, 2014. REUTERS/Muhammad Hamed (JORDAN - Tags: POLITICS CIVIL UNREST CONFLICT ANNIVERSARY)
Syrians living in Jordan and activists wave Syrian opposition flags during a demonstration near the Syrian embassy in Amman
REFILE - CLARIFYING CAPTION Syrians living in Jordan and activists wave Syrian opposition flags as they shout slogans against Syrian President Bashar al-Assad during a demonstration marking the first anniversary of the chemical attack on the Ghouta suburb of Damascus, near the Syrian embassy in Amman August 21, 2014. REUTERS/Muhammad Hamed (JORDAN - Tags: POLITICS CIVIL UNREST CONFLICT ANNIVERSARY)
Man walks by damage and debris in Ain Tarma, in the eastern Ghouta suburb of Damascus
A man walks by damage and debris in Ain Tarma, in the eastern Ghouta suburb of Damascus August 21, 2014. A year has passed since the chemical attacks on Ghouta. REUTERS/Bassam Khabieh (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Woman walks past graffiti on a wall in Erbeen, in the eastern Ghouta suburb of Damascus
A woman walks past graffiti on a wall in Erbeen, in the eastern Ghouta suburb of Damascus August 21, 2014. A year has passed since the chemical attack on Ghouta. The text on the wall reads in Arabic, "We won't forget August 21, 2013" (C) and "Martyr" (R). REUTERS/Bassam Khabieh (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Warplane operated by forces of Syria's President Assad carries out what activists said was an air raid around al-Tabqa military base, west of Raqqa city
A warplane operated by forces of Syria's President Bashar Al-Assad carries out what activists said was an air raid around al-Tabqa military base at a government-controlled airport that is surrounded by militants, west of Raqqa city, August 21, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY TRANSPORT)
Residents point to warplanes operated by forces of Syria's President Bashar Al-Assad during what activists said was an air raid around al-Tabqa military base, west of Raqqa city
Residents point to warplanes operated by forces of Syria's President Bashar Al-Assad during what activists said was an air raid around al-Tabqa military base at a government-controlled airport that is surrounded by militants, west of Raqqa city, August 21, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT TRANSPORT MILITARY)
Warplane operated by forces of Syria's President Assad carries out what activists said was an air raid around al-Tabqa military base, west of Raqqa city
A warplane operated by forces of Syria's President Bashar Al-Assad carries out what activists said was an air raid around al-Tabqa military base at a government-controlled airport that is surrounded by militants, west of Raqqa city, August 21, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY TPX IMAGES OF THE DAY TRANSPORT)
Smoke rises during what activists said was an air raid by warplanes operated by forces of Syria's President Assad around al-Tabqa military base, west of Raqqa city
Smoke rises during what activists said was an air raid by warplanes operated by forces of Syria's President Bashar Al-Assad around al-Tabqa military base at a government-controlled airport that is surrounded by militants, west of Raqqa city, August 21, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY TRANSPORT)