Question: What brotherhood was blamed for the 1981 Azbakiyah bombing?

Context paragraphs:
2011 Aktobe bombing: The 2011 Aktobe Bombing was a terrorist attack in the city of Aktobe, Kazakhstan on May 17, 2011.  The attacker entered the headquarters of the Kazakhstani security services in the oblast and set off a suicide bomb, killing himself and injuring two others.  Initially, the bombing was blamed on "organized crime" in what was considered the first mafia-related suicide bombing in history.  However, Kazakhstani officials eventually conceded that the attack was probably linked to Islamic extremists in the oil-rich province.  The attack marked the opening of a violent summer in Kazakhstan's west, during which multiple attacks claimed the lives of a combined 19 people.

2017 South Surma Upazila bombings: A suicide bombing killed six (four civilians and two police officers) and wounded more than 40, several critically, in South Surma Upazila, Sylhet, Bangladesh.  An army Lieutenant Colonel later died from his injuries from explosion.  It was a bombing attack on the Bangladesh Armed Forces gathered near a militant compound in Sylhet, Bangladesh on 25 March 2017.  Later, other bombs exploded and gunfire was reported.  Islamic State claimed responsibility for this terror attack.  Home Minister Asaduzzaman Khan Kamal has denied the claims of the Islamic State and blamed the local Jama’atul Mujahideen Bangladesh for the bombing.  The Bangladesh Army later found four dead bodies of militants at the suspected hideout.

Fenian dynamite campaign: The Fenian dynamite campaign (or Fenian bombing campaign) was a paramilitary campaign orchestrated by Irish republicans against the British Empire, between the years 1881 and 1885.  The campaign was associated with Fenianism; that is to say the Irish revolutionary organisations which aimed to establish an independent Irish Republic; such as the Irish Republican Brotherhood, the Fenian Brotherhood, Clan na Gael and the United Irishmen of America.  The campaign, led by Jeremiah O'Donovan Rossa and other Irishmen exiled in the United States, was a form of asymmetrical warfare and targeted infrastructure, government, military and police targets in Great Britain (particularly London).  The campaign led to the establishment of secret police group Special Branch (originally known as the Special Irish Branch).

1981 Azbakiyah bombing: The 1981 Azbakiyah bombing (Arabic: تفجير الأزبكية‎ ‎ ) was a terrorist car bomb attack that rocked the densely populated al-Azbakiyah neighborhood of central Damascus in Syria on 29 November 1981.  The explosion, which took place in front of a school in Baghdad Street, close to a complex of intelligence agencies, destroyed three five-story apartment buildings, and killed more than 200 civilians and military men.  The attack was blamed on the Muslim Brotherhood which was waging an insurrection against the government of Hafez al-Assad at the time.

December 2013 Mansoura bombing: The December 2013 Mansoura bombing occurred on the morning of Tuesday, 24 December 2013 in the Nile Delta city of Mansoura in Egypt.  The target was the city's security directorate building that was partially collapsed after the attack.  At least 16 people were killed, mostly policemen, while more than a hundred were injured, according to the Ministry of Interior.  No one immediately claimed responsibility for the bombing but Prime Minister Hazem Al Beblawi, on behalf of the interim government, was quick to blame the Muslim Brotherhood of being behind the attack, labeling it a "terrorist organization" for the first time since the ouster of Mohamed Morsi on 3 July earlier this year.  Egyptian authorities also stated that the militants received logistical support from Hamas.  Ansar Bait al-Maqdis, an Al-Qaeda-linked group in the Sinai Peninsula, released an online statement claiming responsibility for the blast but the government sounded determined that the Muslim Brotherhood was behind it and intensified its crackdown on the organization.  The incident is now widely believed by many to be a turning point in the nation's history as the future of both the Islamists and Egypt's stability remain shadowed and unclear with several violent clashes and other bombings taking place across the country following its ban.

Abercorn Restaurant bombing: The Abercorn Restaurant bombing was a paramilitary attack that took place in a crowded city centre restaurant and bar in Belfast, Northern Ireland on 4 March 1972.  The bomb explosion claimed the lives of two young women and injured over 130 people.  Many of the injuries were severe and included the loss of limbs and eyes.  The Provisional IRA was blamed, although no organisation ever claimed responsibility and nobody was ever charged in connection with the bombing.  According to Ed Moloney, an Irish journalist who has written extensively about the IRA, republican sources have unofficially confirmed the group's involvement.

1988 Oshakati bomb blast: The 1988 Oshakati bomb blast was a bombing in Oshakati, Ovamboland, South West Africa (now Oshana Region, Namibia) which killed 27 people and left 70 others injured on 17 February 1988.  The target of the bombing was the Barclay's Bank in the town.  The perpetrators were never identified or convicted.  Both the South African police and South West Africa People's Organization (SWAPO), the major independence movement in Namibia, were blamed.  At the time of the blast, both SWAPO and the South African authorities blamed each other.

Ghaleb Awwali: Ghaleb Awwali was a senior Amal Movement and later Lebanese Islamic Jihad official who was assassinated in a car bombing in Beirut, Lebanon in a Hezbollah controlled area, on 19 July 2004.  Hezbollah blamed Israel and the Jund Ash Sham organization but offered no evidence, while others blamed Hezbollah itself, as Awwali had been active independently, and had been involved with Sunni Palestinian militant organizations.  Ghaleb Awwali has been called a martyr of Lebanon and a martyr of Palestine.  Hezbollah officials have claimed that the Zionist movement is behind the attacks and have claimed that Jund Ash Sham is linked to Israel, but have offered no evidence.

Hafez al-Assad: Hafez al-Assad (Arabic: حافظ الأسد‎ ‎ "Ḥāfiẓ al-ʾAsad ", ] ] ; 6 October 1930 – 10 June 2000) was a Syrian statesman, politician, and general who was President of Syria from 1971 to 2000.  He was also Prime Minister from 1970 to 1971, as well as Regional Secretary of the Regional Command of the Syrian Regional Branch of the Arab Socialist Ba'ath Party and Secretary General of the National Command of the Ba'ath Party from 1970 to 2000.

June 2016 Midyat bombing: On June 8, a car bomb exploded in the Kurdish town of Midyat, in the southeastern Mardin Province.  It happened in close proximity to Midyat's police office, drawing parallels with the June 2016 Istanbul bombing just one day prior.  Five people were killed in the blast – two police officers and three civilians – with 30 others being injured.  Turkish Prime Minister Binali Yildirim blamed the bombing on the PKK.

Supporting paragraphs: 1981 Azbakiyah bombing Hafez al-Assad
Answer: Muslim Brotherhood