sentences:  The following year he joined the Africa division of Human Rights Watch, only to resign in December 1992 in protest for HRW's support for the American military involvement in Somalia.De Waal was the first chairman of the Mines Advisory Group at the beginning of the International Campaign to Ban Landmines.De Waal set up two human rights organisations, African Rights (1993) and Justice Africa (1999), focusing respectively on documenting human rights abuses and developing policies to respond to human rights crises, notably in Rwanda, Somalia and Sudan.