The foundation for cooperation between NATO and the NATO-PA was strengthened in December 1967 when the North Atlantic Council (NAC) authorized the NATO Secretary General to study how to achieve closer cooperation between the two bodies. As a result of these deliberations over the following year, the NATO Secretary General, after consultation with the NAC, implemented several measures to enhance the working relationship between NATO and the Assembly. These measures included the Secretary General providing a response to all Assembly recommendations and resolutions adopted in its Plenary Sessions.