West Germany agreed to sign a bilateral agreement with the U.S. regarding Marshall plan aid. (see next section) West Germany agreed to send delegates to the International Authority for the Ruhr, effectively accepting some international control of the Ruhr district. (see next section) West Germany agreed to remain demilitarised, without armed forces of any kind, and to support the work of the occupation authorities in this respect. West Germany was permitted to engage in international trade, as well as to establish consular relations. (The creation of a Foreign office was still prohibited) West Germany agreed to follow the principles of liberty, tolerance and humanity and to prevent any reviving of totalitarian efforts.