which enacts law. It is also a direct democracy, where voters can propose and enact constitutional amendments and legislation independent of the legislature. The Constitution of Liechtenstein was adopted in March 2003, replacing the previous 1921 constitution which had established Liechtenstein as a constitutional monarchy headed by the reigning prince of the Princely House of Liechtenstein. A parliamentary system had been established, although the reigning Prince retained substantial political authority.
The reigning Prince is the head of state and represents Liechtenstein in its international relations (although Switzerland has taken responsibility for much of Liechtenstein's diplomatic relations). The Prince may veto laws adopted by parliament. The Prince can call referendums, propose new legislation, and dissolve parliament, although dissolution of parliament may be subject to a referendum.
Executive authority is vested in a collegiate government comprising the head of government (prime minister) and four government councilors (ministers). The head of government and the other ministers are appointed by the Prince upon the proposal and concurrence of parliament, thus reflecting the partisan balance of parliament. The constitution stipulates that at least two members of the government be chosen from each of the two regions. The members of the government are collectively and individually responsible to parliament; parliament may ask the Prince to remove an individual minister or the entire government.
Legislative authority is vested in the unicameral Landtag made up of 25 members elected for maximum four-year terms according to a proportional representation formula. Fifteen members are elected from the "Oberland" (Upper Country or region) and ten members are elected from the "Unterland" (Lower Country or region). Parties must receive at least 8% of the national vote to win seats in parliament. Parliament proposes and approves a government,
