[2] The party's influence grew after internal difficulties caused the Vanua'aku Pati government to fall in 1991.

However, the UMP suffered internal struggles of its own, and in the late 1990s, Corman left to form the Vanuatu Republican Party.

Despite the obvious setback, Vohor was able to form a coalition government in August 2004, but lost a confidence vote four months later.

[3] However, in August 2022, he lost the leadership position at the UMP congress to Ishmael Kalsakau by a vote of 45 delegates to 22.

[4] Following the October 2022 snap election Ishamel Kalsakau, who had been deputy prime minister in the previous cabinet, was appointed prime minister with the support of the previous Leader of Opposition, Ralph Regenvanu of the Land and Justice Party.