Karni na 19 wani lokaci ne na gasar diflomasiyya tsakanin daulolin
Birtaniya da
na Rasha don yin tasiri a kudancin Asiya da aka fi sani da "Babban Wasan" ga Birtaniya da kuma "Gasar Inuwa" ga Rashawa.Ban da Sarki Paul wanda ya ba da umarnin mamaye
Indiya a cikin 1800 (wanda aka soke bayan kashe shi a 1801), babu wani sarkin Rasha da ya taɓa yin la'akari da mamaye Indiya, amma a mafi yawan ƙarni na 19, ana kallon Rasha a matsayin "maƙiyi" a Biritaniya;kuma duk wani
ci gaba na Rasha zuwa tsakiyar Asiya, zuwa kasashen Kazakhstan, Turkmenistan, Kyrgyzstan, Uzbekistan da Tajikistan, ko da yaushe ana zaton (a Landan) za a nusar da shi wajen mamaye Indiya, kamar yadda masanin tarihin Amurka David Fromkin ya lura, "komai yaya. mai nisa" irin wannan fassarar na iya zama.A cikin 1837, Lord Palmerston da John Hobhouse, suna tsoron rashin zaman lafiyar Afganistan, Sindh, da karuwar ikon daular Sikh zuwa arewa maso yamma, ya tayar da kallon yiwuwar mamayewa na Rasha na Birtaniya Indiya ta Afghanistan.Tunanin cewa Rasha ta kasance barazana ga Kamfanin Gabashin Indiya shine nau'in abubuwan da suka faru.Yanzu haka malamai sun yarda da wata fassara ta dabam cewa tsoron Kamfanin Gabashin Indiya shine a haƙiƙa shawarar Dost Mohammed Khan da Qajar Sarkin
Iran na kulla kawance da kuma kashe mulkin Sikh a Punjab.Birtaniya sun ji tsoron cewa sojojin Musulunci da suka mamaye za su haifar da tashin hankali a Indiya daga jama'a da sarakunan sarakuna don haka aka yanke shawarar maye gurbin Dost Mohammed Khan da wani shugaba mai tsauri.A ranar 1 ga Oktoba, 1838 Lord Auckland ya ba da sanarwar Simla ta kai wa Dost Mohammed Khan hari saboda "harin da ba a so" a daular "tsohon abokinmu, Maharaja Ranjeet Singh", ya ci gaba da bayyana cewa Shuja Shah ya kasance "mai farin jini a duk fadin Afghanistan" kuma zai shiga tsohuwar mulkinsa "wanda sojojinsa suka kewaye shi kuma a ba shi goyon baya daga tsoma bakin kasashen waje da adawa mai tsanani daga sojojin Birtaniya".Lord Auckland ya bayyana cewa "Babban Sojojin Indus" za su fara tattaki a Kabul don hambarar da Dost Mohammed tare da mayar da Shuja Shah kan karagar mulkin Afganistan, mai yiwuwa saboda na karshen shi ne sarki na gaskiya, amma a zahiri don sanya Afghanistan a cikin juyin juya hali. Ƙasar Biritaniya na tasiri.Da yake jawabi a zauren majalisar, Duke na Wellington ya yi Allah wadai da mamayar, yana mai cewa za a fara samun matsala ne kawai bayan nasarar mamayar, inda ya yi hasashen cewa sojojin Anglo-Indiya za su fatattaki harajin kabilun Afganistan, sai dai su samu kansu cikin fafutukar ganin sun ci gaba. , kamar yadda tsaunin Hindu Kush da Afganistan ba su da hanyoyi na zamani, kuma suna kiran duka aikin "wauta" tun da Afghanistan kasa ce mai "dutse, yashi, hamada, kankara da dusar ƙanƙara".