sentences:  The following second cabinet formation of 1972 resulted in a coalition agreement which formed the Cabinet Den Uyl, the Cabinet Biesheuvel II was replaced by the Cabinet Den Uyl on 11 May 1973.Shortly thereafter Biesheuvel unexpectedly announced his retirement from national politics and that he was stepping down as Leader on 15 May 1973.Biesheuvel retired after spending 16 years in national politics and became active in the private sector and public sector and occupied numerous seats as a corporate director and nonprofit director on several boards of directors and supervisory boards (KLM, Unilever, Overseas Gas and Electric Company, CSM, AVEBE and the NIBC Bank) and served on several and councils on behalf of the government (Staatsbosbeheer, and Public Pension Funds APB) and as an advocate and lobbyist for European integration.