The Lao People's Democratic Republic, along with North Korea, China, Cuba and Vietnam, is one of the world's five remaining communist states. The only legal political party is the Lao People's Revolutionary Party (LPRP). The head of state is President Choummaly Sayasone, who is also the General Secretary of the Lao People's Revolutionary Party. The head of government is Prime Minister Thongsing Thammavong, who is also a senior member of the Lao Communist Party's Politburo. Government policies are determined by the party through the all-powerful eleven-member Politburo of the Lao People's Revolutionary Party and the 61-member Central Committee of the Lao People's Revolutionary Party. Important government decisions are vetted by the Council of Ministers. The Socialist Republic of Vietnam maintains significant influence over the Politburo of Laos and the one-party communist state apparatus and military.