Answer
Sajudis, the political party Landsbergis helped found, was a Lithuanian reform movement and political party that played a crucial role in the country's independence movement in the late 1980s. Founded in 1988, Sajudis advocated for political and economic reforms, greater civil liberties, and the restoration of Lithuania's independence from the Soviet Union. Led by Landsbergis, the party gained widespread support and was instrumental in the Baltic states' drive towards independence.