On March 3, the Iron Front planned a march in Kassel, but was hindered by regular police. On May 2, all trade unions, with which the Iron Front was closely allied, were finally abolished, together with all trade union structures.[7] Until the mid 1930s and in some cases until the war years, some local branches of the Iron Front and the former trade union organisations continued with resistance, mostly by spreading leaflets, organizing secret meetings, and carrying out acts of sabotage.[8]