Rubuta ci gaba ga wannan sakin layi - Charles XII na Sweden, bayan da aka ci shi a 1709 a yakin Lesnaya
, ya nemi mafaka a Tighina, wani sansanin soja na kan iyaka na Turkiyya na Moldavia, wanda sojojin Ottoman suka tsare. A matsayin martani, Bitrus ya zo Iaşi a 1710. A can ya sake sanya hannu kan yarjejeniyar kawancen Rasha da Moldova (wanda aka sanya hannu a baya a Lutsk a ranar 24 ga Afrilu 1711), wanda ya ba da jagorancin gado ga abokinsa na kusa Dimitrie Cantemir (ɗan Constantin Cantemir da ɗan'uwan Antioh Constantin) wanda ya kamata ya ɗauki taken Sarkin Sarkin ƙasar Moldavia, Mai Mulki, da Aboki (Volegator) na ƙasar Rasha, amma ba a matsayin batun ba, kamar yadda yake a ƙarƙashin Ottomans. Ko da yake a wannan lokacin iyakar yammacin Rasha ita ce Kogin Bug na Kudu, yarjejeniyar ta bayyana cewa Dniester ya zama iyaka tsakanin Moldavia da Daular Rasha kuma Budjak zai kasance na Moldavia. Ƙasar ba za ta biya ko ɗaya daga cikin haraji ba. Sarkin ya yi alkawarin cewa ba zai taka dokar sarkin Moldavia ba, ko kuma duk wanda zai gaje shi. Da yake sun ɗauke shi a matsayin mai ceton Moldavia, boyars sun yi liyafa don girmama sarkin da kuma yin bikin yarjejeniyar.