An increasingly isolated figure, Hugenberg was finally forced to resign from the cabinet after a campaign of harassment and arrest was launched by Hitler against his DNVP coalition partners. The Sturmabteilung (SA) were also turned against the DNVP, with youth movements loyal to Hugenberg becoming the focus of attacks. He announced his formal resignation on 29 June 1933 and he was replaced by others who were loyal to the Nazi Party, Kurt Schmitt in the Economy Ministry and Richard Walther Darré in the Agriculture Ministry. A 'Friendship Agreement' was signed between the Nazis and the DNVP immediately afterwards, the terms of which effectively dissolved the Nationalists with a few members whose loyalty could be guaranteed absorbed into the Nazi Party. Indeed, the German National Front, as the DNVP had officially been called since May 1933, had officially dissolved on 27 June.