With Brahimi at his side, UN Secretary-General Ban Ki-Moon, with said the envoy will step down May 31. Ban pledged to keep working to achieve peace.
When Brahimi took the job, replacing his longtime friend, former UN secretary-general Kofi Annan, he said it would be "an extremely complicated and very, very difficult mission."
Brahimi managed to get government officials and opposition to two rounds of peace talks in Geneva, but they ended without an agreement.
Brahimi had been working behind the scenes to restart the Geneva negotiations but that effort was all but doomed when President Bashar Assad's government announced that elections would be held on June 3. The Geneva talks were intended lead to a transitional government.
Ban said Brahimi "faced almost impossible odds with the Syrian nation, Middle Eastern region, and ... international community that have been hopelessly divided in their approaches to ending the conflict."
"He has persevered with great patience and skill," Ban said. "I regret that the parties, especially the government, have proven so reluctant to take advantage of that opportunity to end the country's profound misery."
The only achievement of the Geneva talks before they broke off in February was a week-long ceasefire in the central city of Homs to evacuate hundreds of civilians that have lived under a crippling army siege.
Assad's forces earlier this week took full control of Homs following a ceasefire agreement with the rebels that allowed more than 2,000 opposition fighters to leave the city, which had been dubbed the "capital of Syrian revolution."
The Syrian conflict started as largely peaceful protests against Assad's rule in 2011. It turned into a civil war after some opposition supporters took up arms to fight a brutal government crackdown. Over the past year, the fighting has taken increasingly sectarian overtones, pitting largely Sunni Muslim rebels against Assad's government that is dominated by Alawites, a sect of Shiite Islam.
Brahimi resigning as UN-Arab League envoy to Syria
Asia
Greek PM avoids comment on Türkiye’s F-35 talks
Iran says US oil sanctions waiver revocation violates Pakistan-mediated MoU
UPDATED'>
U.S. strike targets two military facilities in Iran's Bushehr province - UPDATED
IRGC member killed by shrapnel wounds in US drone strike in Mahshahr
NEWS FEED
Greek PM avoids comment on Türkiye’s F-35 talks
Ukraine signs $2.5 billion deal with Sweden for 16 Saab Gripen E fighter jets
Iran says US oil sanctions waiver revocation violates Pakistan-mediated MoU
U.S. strike targets two military facilities in Iran's Bushehr province - UPDATED
IRGC member killed by shrapnel wounds in US drone strike in Mahshahr
Nearly 5,000 foreigners detained for illegal migration in Azerbaijan this year, over 800 expelled
Ukraine strikes nine more Russian tankers in the Sea of Azov
President Ilham Aliyev invites King of Jordan to visit Azerbaijan
SBU claims strikes on military targets in Crimea and Russian-controlled territories
Azerbaijan’s gas exports to EU increase by 3%
Iran launches another attack on US targets in Bahrain
President Ilham Aliyev received Deputy Prime Minister of Jordan
IEA forecasts global gas consumption to decline this year
Norway allocates three billion kroner to Ukraine's air defence
New US attacks on Iran were absolutely necessary, NATO chief says
Serbia arrests two suspected Russian agents near Hungarian border amid German sabotage investigation
Ghalibaf accuses US of violating memorandum provisions
Azerbaijan-Turkmenistan Joint Intergovernmental Commission to hold next meeting
More than two million mourn Khamenei at Najaf funeral, Iraqi force says
Botchorishvili: Georgia-Türkiye-Azerbaijan cooperation now holds greater importance
Woman killed in Russia's strikes on Kyiv - UPDATED
Azercell advances AI capability development through AWS-led training initiative
US sharply lowers oil price forecast
Gold continues to decline on commodity markets
Azerbaijani oil price surpasses $75 per barrel
Natural gas prices rise on New York exchange
Rutte: Iran issue to be discussed at today's NATO summit
Russia says air defenses destroyed 415 Ukrainian drones overnight
IRGC Claims Strikes on 85 US Military Facilities in Bahrain, Kuwait
Next resettlement convoy departs for Khojavand and Shusha - PHOTO
U.S. completed new round of strikes against Iran, hitting over 80 targets
US oil sanctions on Iran violate agreement, Tehran says
FIFA has suspended two US Soccer Federation employees ahead of the Round of 16
Pakistani cargo plane goes missing over Arabian Sea
US has launched strikes against Iran, CENTCOM says
Russia strikes Ukraine's Odesa with cluster-munition ballistic missile: Casualties reported
Death toll from earthquake in Venezuela rises to 3,685
US reinstates sanctions on Iranian oil sales after LNG, oil tanker attacks
Qatari foreign ministry hands note of protest to Iranian diplomat over LNG tanker attack
Israeli PM: Türkiye’s transfer of F-35 fighter jets will destroy the balance of power in the Middle East
Netanyahu on Trump: We have occasional disagreements
Argentina's comeback knocks Egypt out of World Cup
Ukraine signs Drone Deal with Netherlands
US announces its forecast for production of liquid hydrocarbons in Azerbaijan for this year
Ukraine receives $900M aid package from Canada
Trump says US ready to lift CAATSA sanctions on Türkiye
Gagik Tsarukyan gets two-month detention
Appeal hearing on complaints filed by Armenian citizens continues
Delegation-level meeting chaired by Erdoğan and Trump begins
Russia’s Olympic ban lifted