Prime Minister of Thailand sixteen out of twenty-nine, including the incumbent General Prayut Chan-o-cha. Military dominance began with the country's second Prime Minister, Phot Phahonyothin, who ousted his civilian predecessor in a coup in 1933. The longest serving Prime Minister was Field Marshal Plaek Pibulsonggram at 14 years, 11 months and 18 days. The shortest was Tawee Boonyaket at just 18 days. Nine were removed by coups d'état, three were disqualified by court order, and eleven resigned from office. The youngest ever to occupy office was M.R. Seni Pramoj at 40 years old. Thailand received its first female prime minister, Yingluck Shinawatra, in 2011.
Prime Minister of Russia Minister. In case of the President's death, resignation or impeachment, the Prime Minister becomes a temporary president until new presidential elections which must take place within three months. The Prime Minister as Acting President may not dissolve the State Duma, announce a referendum or propose amendments to the Constitution. The Chairman of the Federation Council is the third important position after the President and the Prime Minister. In the case of incapacity of the President and Prime Minister, the chairman of the upper house of parliament becomes acting head of state. As of , there are seven living former Prime