Agha Mohammad Khan, bayan ya samu nasara daga yakin basasa bayan wafatin sarkin Zand na karshe, ya mayar da hankali wajen sake hadewa tare da mayar da kasar Iran tsakiya.
[54] Bayan Nader Shah da zamanin Zand, yankunan Caucasian na Iran sun kafa khanates iri-iri.Agha Mohammad Khan ya yi niyyar sake shigar da wadannan yankuna cikin Iran, tare da la'akari da su a matsayin wani yanki na gaba daya.Ɗaya daga cikin abubuwan da ya fi mayar da hankali a kai shi ne Jojiya, wanda yake kallo a matsayin mai mahimmanci ga ikon Iran.Ya bukaci Sarkin Jojiya, Erekle II, ya yi watsi da yarjejeniyar da ya yi da Rasha a shekara ta 1783, kuma ya karbi suzerainty na Farisa, wanda Erekle II ya ƙi.A martanin da ya mayar, Agha Mohammad Khan ya kaddamar da wani kamfen na soji, inda ya yi nasarar sake tabbatar da ikon Iran a kan yankuna daban-daban na Caucasian, ciki har da
Armeniya ta zamani,
Azarbaijan , Dagestan, da Igdir.Ya yi nasara a yakin Krtsanisi, wanda ya kai ga kama Tbilisi da sake mamaye
Jojiya .
[55]A cikin 1796, bayan ya dawo daga yakin neman zabensa na nasara a Jojiya tare da jigilar dubunnan mutanen Jojiya da aka kama zuwa Iran, Agha Mohammad Khan ya samu sarautar Shah a hukumance.An yanke mulkinsa ta hanyar kisan gilla a 1797 yayin da yake shirin wani balaguro da Georgia.Bayan mutuwarsa,
Rasha ta yi amfani da rashin zaman lafiya a yankin.A cikin 1799, sojojin Rasha sun shiga Tbilisi, kuma a shekara ta 1801, sun mamaye Jojiya sosai.Wannan faɗaɗa ya zama farkon yakin Rasha-Persian (1804-1813 da 1826-1828), wanda ya kai ga ƙarshen Gabashin Jojiya, Dagestan, Armeniya, da Azerbaijan zuwa Rasha, kamar yadda ya tanada a cikin yarjejeniyoyin Gulistan da Turkmenchay.Don haka, yankunan arewacin kogin Aras, da suka hada da Azerbaijan ta zamani, gabashin Jojiya, Dagestan, da Armeniya, sun kasance wani bangare na Iran har zuwa lokacin da Rasha ta mamaye su a karni na 19.
[56]Bayan yaƙe-yaƙe na Rasha da Farisa da asarar manyan yankuna a cikin Caucasus, an sami sauye-sauye na al'umma.Yaƙe-yaƙe na 1804-1814 da 1826-1828 sun haifar da ƙaura da yawa waɗanda aka fi sani da Muhajir Caucasian zuwa ƙasar Iran.Wannan yunkuri ya hada da kabilu daban-daban kamar Ayrums, Qarapapaqs, Circassians, Shi'a Lezgins, da sauran musulmin Transcaucasian.
[57] Bayan yakin Ganja a 1804, yawancin Ayrums da Qarapapaq sun sake zama a Tabriz, Iran.A tsawon yakin 1804-1813, daga baya kuma a lokacin rikicin 1826-1828, yawancin wadannan kungiyoyi daga sabbin yankuna na Rasha da suka mamaye sun yi hijira zuwa Solduz a lardin yammacin Azarbaijan, Iran.
[58 <>] Ayyukan sojan Rasha da batutuwan mulki a yankin Caucasus sun kori musulmi da yawa da wasu Kiristocin Jojiya gudun hijira a Iran.
[59]Daga 1864 har zuwa farkon karni na 20, ƙarin korar da ƙaura na son rai ya faru bayan nasarar Rasha a yakin Caucasian.Wannan ya haifar da ƙarin motsi na Musulman Caucasian, ciki har da Azerbaijan, sauran Musulmi na Transcaucasian, da kuma Arewacin Caucasian kungiyoyin Circassians, Shi'a Lezgins, da Laks, zuwa Iran da Turkiyya.
[57] Yawancin wadannan bakin haure sun taka muhimmiyar rawa a tarihin Iran, inda suka zama wani muhimmin bangare na Brigade Cossack na Farisa da aka kafa a karshen karni na 19.
[60]Yarjejeniyar Turkmenchay a shekara ta 1828 ta kuma taimaka wajen sake tsugunar da 'yan Armeniyawa daga Iran zuwa sabbin yankuna da Rasha ke iko da su.
[61] A tarihi, Armeniyawa sun kasance mafi rinjaye a Armeniya ta Gabas amma sun zama ƴan tsiraru bayan yaƙin neman zaɓe
na Timur da rinjayen Musulunci na gaba.
[62] Harin da Rasha ta yi wa Iran ya kara canza tsarin kabilanci, wanda ya kai ga rinjayen Armeniya a gabashin Armeniya a shekara ta 1832. Wannan jujjuyawar al'umma ta kara karfi bayan yakin Crimean da yakin Rasha-Turkish na 1877-1878.
[63]A wannan lokacin, Iran ta sami karuwar huldar diflomasiyya a karkashin Fath Ali Shah.Jikansa, Mohammad Shah Qajar, wanda Rasha ta yi tasiri, bai yi nasara ba don kama Herat.Naser al-Din Shah Qajar, wanda ya gaji Mohammad Shah, ya kasance shugaba mafi nasara, wanda ya kafa asibitin zamani na farko na Iran.
[64]Babban Yunwar Farisa na 1870-1871 wani bala'i ne mai ban tsoro, wanda ya haifar da mutuwar kusan mutane miliyan biyu.
[65] Wannan lokacin ya nuna gagarumin canji a tarihin Farisa, wanda ya kai ga juyin juya halin tsarin mulkin Farisa a kan Shah a karshen karni na 19 da farkon karni na 20.Duk da kalubalen da ake fuskanta, Shah ya amince da wani takaitaccen tsarin mulki a shekarar 1906, inda ya mayar da Farisa zuwa tsarin mulkin tsarin mulki, ya kuma kai ga taron Majlis (majalisar) na farko a ranar 7 ga Oktoba, 1906.Gano mai a shekarar 1908 a Khuzestan da turawan Ingila suka yi ya zafafa muradun kasashen waje a Farisa, musamman ta
Daular Birtaniyya (wanda ke da alaka da William Knox D'Arcy da Kamfanin Man Anglo-Iran, yanzu BP).Wannan lokacin kuma an yi masa alama da fafatawa a fagen siyasa tsakanin Burtaniya da Rasha kan Farisa, wanda aka fi sani da Babban Wasan.Yarjejeniyar Anglo-Rasha ta 1907 ta raba Farisa zuwa bangarori masu tasiri, wanda ke lalata ikonta na kasa.A lokacin
Yaƙin Duniya na ɗaya , sojojin Burtaniya, Ottoman, da na Rasha sun mamaye Farisa amma ta kasance tsaka tsaki.Bayan yakin duniya na daya da
juyin juya halin Rasha , Biritaniya ta yi yunkurin kafa wata kariyar kariya a kan Farisa, wanda a karshe ya kasa.Rashin zaman lafiya a cikin Farisa, wanda yunƙurin tsarin mulki na Gilan ya ba da haske, da raunin gwamnatin Qajar, ya share hanyar haɓakar Reza Khan, daga baya Reza Shah Pahlavi, da kuma kafa daular Pahlavi a 1925. Wani muhimmin juyin mulkin soja na 1921, ya jagoranci. da Reza Khan na Farisa Cossack Brigade da Seyyed Zia'eddin Tabatabai, ya kasance da nufin sarrafa jami'an gwamnati a maimakon kifar da masarautar Qajar kai tsaye.
[66] Tasirin Reza Khan ya karu, kuma a shekara ta 1925, bayan zama firayim minista, ya zama Shah na farko na daular Pahlavi.