Commonwealth Union (Urcea)

The National Social Union, formerly the National Liberal Party and sometimes known by the shorthand NSU, was the second largest political party in the Apostolic Kingdom of Urcea. The National Social Union was formed as a consolidation of the coalition between the National Democratic Party and the Liberal Party before the 1999 elections in an effort to strengthen election efforts. The National Social Union's main opponent in Urcea was the older National Pact.

The party originated as moderate supporters of the program of Gréagóir FitzRex during the latter portion of the Red Interregnum. In general, the party historically supported increased reforms to the Constitution of Urcea, a position that it gradually moderated following the Great War. As opposed to the National Pact, the National Social Union espouses a more economy and also believes in a more active foreign policy outside the Levantine Union. After the Great War, the party largely became supporters of the and became a  party in opposition to the economic liberalism of the National Pact. Fissures began to form in the party following the merger with the Liberal Party between the "big tent centrist" faction, the left-wing "Marxist reading" party, and the Wittonian Socialist faction. The party dissolved as part of the 2015 Urcean political realignment and is considered to have been succeeded by the Union for National Solidarity.