Kammala wannan jumla: Madoyan ya kulla alaka da Sultan al-Atrash kuma ya ba da hadin kai wajen safarar makamai tsakanin Beirut da Jebel Druze a lokacin yakin basasa.
1925-1927 juyin juya halin Siriya. Hukumomin Faransa sun kama Madoyan a 1926. Lokacin da aka sake tsara Kwamitin Tsakiya a 1928, Madoyan ya kasance memba a ciki. A cikin 1931 Madoyan ya gabatar da Khalid Bakdash ga Kwamitin Tsakiya, Bakdash ba da daɗewa ba ya zama babban sakataren jam'iyyar. Bakdash ya zauna a Moscow daga Disamba 1933 zuwa 1937, ya zama wakilin dindindin na jam'iyyun kwaminisanci na Larabawa ga Kungiyar Kwaminisanci ta Duniya (Comintern) a 1934 bisa shawarar Madoyan. A cikin rashin Bakdash, Madoyan ya gudanar da al'amuran yau da kullun na jam'iyyar tare da Farajallah al-Hulo da Nicola Shawi. Madoyan ya ba da shawara ga Comintern don kafa tarayyar jam'iyyun kwaminisanci na Larabawa tare da shugabanci na gama gari, amma wannan ra'ayin bai sami amincewar shugabancin Comintern ba saboda damuwar tsaro.