The Latvian political landscape is characterized by a multi-party system, where several parties represent a range of ideologies. The major political parties include the Unity Party, Harmony, and the National Alliance. Elections are held every four years, and the Saema is the national parliament responsible for legislative functions. Latvia's political environment is influenced by its history, particularly its independence from the Soviet Union in 1990. The country is a member of the European Union and NATO, which shapes its foreign policy and security strategies. Political debates often focus on issues like economic development, social integration, and national security.