Haji Mohammad Chamkani
However , Mohammed Najibullah was in charge of the country , due to his powerful positions of Director of the KHAD and General Secretary of the People's Democratic Party of Afghanistan . 
<triplet> Mohammed Najibullah <subj> KHAD <obj> employer <subj> People's Democratic Party of Afghanistan <obj> member of political party <triplet> People's Democratic Party of Afghanistan <subj> Mohammed Najibullah <obj> chairperson