Prime Minsters of the First Republic of Armenia:
1918-1919:Hovhannes Kajaznuni (Armenian Revolutionary Federation)
1919: Armenian Revkom (Armenian Communist Party)
1919-1920: Alexander Khatisian (Armenian Revolutionary Federation)
1920-1921: Andranik Ozanian (Armenian Liberation Front)
1921-1925: Andranik Ozanian-Garegin Nzhdeh-Christophor Araratov-Oliver Baldwin (Anti-Bolshevik War Council)
Prime Minsters of the Second Republic of Armenia:
1925-1929: Christophor Araratov (Armenian Democratic Coalition)
1925 (Majority) def: Oliver Baldwin* (Social Democratic Labour Party)
1929-1932: Sebouh Nersesian (Armenian Democratic Party)
1929 (Coalition with Social Democratic Labour) def: Gevorg Gharadjian (Social Democratic Labour), Yeghishe Charents (Armenian Workers), Garegin Nzhdeh (Armenian Populist Party)
1932-1941: Garegin Nzhdeh (Armenian Populist Party)
1932 (Majority) def: Sebouh Nersesian (ADP), Perchuhi Partizpanyan-Barseghyan (Social Democratic Labour), Yeghishe Charents (Armenian Workers), Drastamat Kanayan (Armenian National Party)
1936 (Majority) def: Ruben Ter Minassian (ADP), Alexander Bekzadyan (Social Democratic Labour), Avetik Isahakyan (Armenian Workers), Drastamat Kanayan (Armenian National Party)
1940 (Coalition with ADP) def: Ruben Ter Minassian (ADP), Sarkis Dkhrouni (Social Democratic Labour), Aghasi Khanjian (Armenian Workers Party), Drastamat Kanayan (Armenian National Party)
1941-1945: Garegin Nzhdeh (Armenian Populist leading War Government)
1945-1949: Ruben Ter Minassian (Armenian Democratic Party)
1945 (Coalition with the APP) def: Garegin Nzhdeh (APP), Sarkis Dkhrouni (Social Democratic Labour), Aghasi Khanjian (Armenian Democratic Socialist Party), Avetik Isahakyan (Armenian Workers Party), Drastamat Kanayan (Armenian National Party)
1949-: Sarkis Dkhrouni (Social Democratic Labour Party)
1949 (Majority) def: Ruben Ter Minassian (ADP), Makhluto (APP), Aghasi Khanjian (Armenian Democratic Socialist Party), Vagarshak Ter-Vaganyan (Armenian Workers)
*Interim Leader for the election, Gevorg Gharadjian would become the leader of the SDLP in 1927 after being allowed back into Armenia by the Araratov Goverment.
The survival of the Armenian First Republic was a close run thing, the Turkish tried to gobble up the nascent nation as it was just established, only for the Greek onslaught in Anatolia to make them reconsider. The Soviet’s tried to take over but the Revkom barely lasted a month as Soviet force were occupied elsewhere (the Armenian would manage to form a small rump state near Georgia before Mikoyan had them purged for incompetence). The next several years of the Armenian Republics existence was battling the Soviet Union, with an incredibly bloodied Turkey (Greece winning big From the Turkish-Greek War) awkwardly supporting Armenia feeling a Democratic Armenia would be a good defence against the Soviet menace. With Western funding and arms and British support after Stanley Baldwin’s Son Oliver decided to become a military adviser (and then member of the ruling coalition) for the nascent Republic eventually the Soviet’s threw in the towel (especially with Lenin’s death causing the Soviet’s to pause and reconsider). With there victory secured it was decided that Democratic elections would finally properly occur and the Second Republic of Armenia was declared.
Elections of 1925 would be landslide for Armenian Democratic Coalition, mainly because many Social Democrats and Socialist dissidents had been arrested or had waited out the War in other countries (large portions of the Social Democrat Hunchakian Party's leadership had been driven into exile during the Armenian Genocide and were only slowly coming back to Armenia), leading the odd situation of Oliver Baldwin being the interim head of the Social Democratic and Labour Party (a coalition of various Left Wing groups in Armenia who weren’t Pro-Soviet) as opposition to the Democratic Coalition. By 1929, various splinter parties had been formed from the Democratic Coalition as most Socialists and Social Democrats join the SDLP or the Workers Party (which is really a front for the Communists in the Soviet Union to influence Armenia), Populists and Agrarian Socialists joining the Populist Party and a smattering of Conservatives, Liberals and the occasional National Populist or Fascist joining the National party leading to a more competitive election. In the end the Social Liberal Democratic Party is forced into a coalition with the SDLP, the coalition is shaky but both Parties agree in a rapid Industrialisation of Armenia (a Five Year Plan would be implemented inspired by the NEPer's in the Soviet Union) and the creation of the Armenian Welfare State of sorts. The coalition wouldn't see the end of the first Five Year Plan as the coalition collapses in 1932 over an argument over enshrining the workers right to create Trade Unions into the Armenian Constitution as Armenia is partially hit by the Great Depression and Business leaders (the main backers of the ADP) are battling Trade Unions (the main backers of the SDLP).
So in 1932, the Armenian Populist Party wins the election. Lead by Garegin Nzhdeh the Parties ideology is pretty fluid but could be best described as a more Populist, Agrarian Socialist, Socially Conservative inspired ideology called Nzhdehism which would come to dominate the 1930s. Farm land is redistributed, the Government invests more into the Welfare of farmers more than anything, Women's Rights hit a deadend and the Armenian Apostolic Church is enshrined into the constitution as the official religion of the Republic (many Muslims are driven out of Armenia into Iran and Turkey, meanwhile Armenia oddly becomes a haven for Jews from the Soviet Union who are discriminated against by the State as Nzdeh believes they would make ideal Anti-Communists). Communism in Armenia is reduced to a ineffective rump, though Stalin is more effective at purging Armenian Communism than Nzdeh ever is (this would eventually lead to the Workers Party split of the mid 40s, as the youthful Aghasi Khanjian is pushed into the leadership but quickly turns against the Soviet line as more and more information about the fates of Charents and Isahakyan become apparent).
The Populist Party clings onto power in 1940 by entering a coalition with the ADP as the SDLP under passionate Socialist Sarkis Dkhrouni expands it's appeal and takes more and more inspiration from the Labour Party (as Oliver Baldwin and a number of his comrades influence the SDLP policies and ideas). But soon afterwards War between the Soviet Union and the Axis and Armenia supports the Allies (despite the Axis powers trying to bribe Armenia into joining the Axis and fighting the Soviet's, Armenia's fear of the Soviet's trumps all else in the end) in particular sending forces to help the Anglo-Soviet Invasion of Iran, sending an expeditionary force to help the Allies in North Africa, the Middle East, Italy and Greece and providing industrial and farming aid to the Soviets during the midst of the Nazi Invasion.
But the so called War Coalition is dissolved in the aftermath of the Soviet victory against the Nazi's as the SDLP accuses Nzhdeh of 'Kemelism' especially due to the banning and absorption of the National Party into the ADP/APP coalition. So the election of 1945 occurs, but a secret deal between the APP and ADP allows them to keep the SDLP out of power. Ruben Ter Minassian's rule is tired for the most part, even the small economic boom that occurs due to Armeina making a tidy profit out of the War is tempered by a War scare with the Soviets and a brief War between Iran and Armenia during the 1946 Iranian Crisis (one of the first big Cold War scares) as Ter Minassian is seen as a War Monger (the ensuing peace that establishes the Republic of Mahabad and has the Soviet Union finally securing Armenian recognition of the Armenian SSR leads to the riots of 1946). By the beginning of 1949 the APP-ADP coalition is beginning to break apart and the SDLP, buoyed with help from Oliver Baldwin, Labour MP Noel Agazarian and his Labour Friends of Armenia storms ahead in the polls before winning election (despite rumblings in the military of a possible coup before it's decided that the SDLP are Anti-Soviet enough for them) even the ASDP manages to win several seats out of the coalition collapse. And so now Sarkis Dkhrouni is able to try and create his vision of a Social Democratic Armenian future, workers right and trade unions to be enshrined into the constitution, expansion of women's rights and Nationalisation of the Banks and Major Industries...