F. van Zyl Slabbert speaks at the launch of the UDF's "call to the whites" campaign. City Hall , Johannesburg- April 1986. Left to right: Beyers Naude, Van Zyl Slabbert and Zach Yacoob.

Politician Frederik Van Zyl Slabbert at 'Call to whites' meeting organised by the United Democratic Front (UDF). He was leader of the official opposition, the Progressive Federal Party (PFP), in the House of Assembly.