National Democratic Party (Daidieu)

National Democratic Party (Dieu: ; NDP) is a major centre to centre-right political party in Daidieu. It is also the oldest and the longest-ruling party in Daidieu. Its main rival is the Social Liberal Party, which ended the NDP's 23 years of continuous rule in 1999 (except for a 15 year period from 1972 to 1987 when all parties were banned).

History
Hours after the Dieuese party ban was lifted on November 3, 1964, Hǎ Ēng Ngǐ founded the NDP. It was an anti-communist party, and then-Emperor Thang Cang supported the NDP, due to its anti-communism. The Emperor helped the party to win the fraudulent 1964 and 1968 elections (which the Communist Party was supposed to win).

From 1972 to 1979, the communist Kim Nau Szi ruled Daidieu with an iron fist. All political parties except the Communist Party was illegal, and all NDP members were hunted down and executed. Most NDP members escaped Daidieu however.

In 1979, Lïëng Kwë́k Bǎǎw obtained power following the Tet Expedition in which Kim was overthrown and the country became the Republic of Daidieu. All political parties except for the Reconstruction Party were banned as Lïëng believed that partisanship had destroyed Daidieu and led to the creation of the People's Republic. As a result, Lïëng upheld the NDP ban until democratization in 1985.

In 1999, the SLP (Social Liberal Party) ended the NDP's rule since 1987, due to the decline of anti-communism.