The Yemeni Congregation for Reform, frequently called al-Islah ( pronounced [alʔisˤlaːħ]; Arabic: التجمع اليمني للإصلاح at-Tajammu’u al-Yamanī lil-Iṣlāḥ ), is a Yemeni Islamist party founded in 1990 by Abdullah ibn Husayn al-Ahmar, Ali Mohsen al-Ahmar, Abdul Majeed al-Zindani, Mohammed al-Yadumi and Yahya Rassam. The first article of Islah basic law defines it as "a popular political organization that seeks reform of all aspects of life on the basis of Islamic principles and teachings".
Islah is more of a loose coalition of tribal and religious elements than a political party. Its origins are in the Islamic Front, a Muslim Brotherhood affiliated militia funded by Saudi Arabia to combat the Marxist National Democratic Front. The Islamic Front regrouped after the unification of Yemen in 1990 under the banner of the Islah Party with considerable financial backing from Saudi Arabia. Islah has long been identified as a client of Saudi Arabia.  In its official website, Islah summarizes its foreign policy agenda; one of five major goals is "strengthening our country’s relations with sister Kingdom of Saudi Arabia and the countries of the Gulf Cooperation Council."  In addition, Saudi Arabia financed the so-called "scientific institutes", Wahhabi Madrasas that were informally controlled by Islah.  Militant Islam arose in Yemen as a result of substantial Saudi funding.
Islah differs from most other Arab Islamists. The party combines tribal influences along with those of the Yemeni Muslim Brotherhood and more radical Wahhabi groups. As a result, it faces deep internal divisions on key issues. Its fractious composition prevents it from developing a clear parliamentary platform, forcing it instead to balance tribal and political interests, differing interpretations of the party’s Islamist platform, and both loyalist and opposition constituencies.  Given its origin as an alliance, Islah's ideology remains vague and its political platform ambiguous. Islah could be best described as a conservative party that promotes tribal and religious values.
The Joint Meeting Parties came into existence in 2003 when Islah and the socialist party joined three other smaller parties to establish a joint opposition to the ruling general people's congress. At the last legislative elections, 27 April 2003, the party won 22.6% of the popular vote and 46 out of 301 seats.
The party is a part of the Muslim Brotherhood, which is considered a terrorist organization by the governments of Bahrain,   Egypt, Russia, Syria, Saudi Arabia and United Arab Emirates.    However, since the civil war in Yemen, Saudi Arabia has forged closer relations with Al-Islah. 
General structure, leadership
Al-Islah has been described as consisting of "three components. The first is the political faction, Yemen’s Muslim Brotherhood, led by Mohammed Qahtan. The second is the tribal confederacy which was led by top tribal chief Abdullah Al Ahmar until his death in 2007 at which time he was succeeded by his son Sadeq. (Hamid al-Ahmar is Sadeq's younger brother and is active in politics.) The third is the Salafi movement, led by the country’s most prominent Sunni religious scholar, Abdul Majeed al-Zindani."   Muhammad Al-Yadomi succeeded Al Ahmar as the head of the party following his death on 28 December 2007. 
In the 2003 parliamentary election, Al-Islah won 46 seats. As of 2010, 13 of Al-Islah's parliament members were women, including human rights activist and Nobel laureate Tawakel Karman,   who created the activist group Women Journalists Without Chains in 2005  and became the first Yemeni and Arab woman to win the Nobel Peace Prize in 2011.
Al-Islah says that those thinking of fighting for the Yemeni government against the Shia insurgency of the Houthis should instead keep well out of the war because Yemenis must not help Yemen's pro-Western government, which deserves to be overthrown. 
Al-Islah is agitating, at the moment, against a draft amendment to the constitution of Yemen that could allow the president to run for life. The party was also involved in organising demonstrations for the 2011 Yemeni protests. 
Relations with Saudi Arabia
The party was blacklisted by Saudi Arabia in March 2014 due to its ties to the Muslim Brotherhood.  Since the death of former King Abdullah bin Abdulaziz, Saudi Arabia has repaired relations with Al-Islah, due to their role in fighting the Houthis during the Yemeni Civil War.