17 May 1997
Roelf Meyer announces his resignation as the leader of the National Party (NP) in Gauteng and also as Member of Parliament. A year later he co-founds the United Democratic Movement (UDM) with former Transkei bantustan leader Bantu Holomisa.

United Democratic Movement, UDM., (1999), 'Status, Objectives, Policies and Formation of the UDM', from enca, [online], Available at https://www.enca.com/content/united-democratic-movement-udm [Accessed 29 May]|Ngonyama, S., (2000), 'The resignation of Roelf Meyer from politics', from ANC Organisation, January 6, [online], Available at https://www.anc.org.za/show.php?id=7297 [Accessed: 29 May 2014]|Petrus Meyer, S,. (2000), 'Roelof Petrus (Roelf) Meyer biography', from South African history online,  [online], Available at https://www.sahistory.org.za/people/roelof-petrus-roelf-meyer [Accessed 29 May 2014]