In December 2004, President Putin visited Turkey, making it the first presidential visit in the history of Turkish-Russian relations besides that of the Chairman of the Supreme Soviet of the USSR, Nikolai Podgorny in 1972. In November 2005, Putin attended the inauguration of a jointly constructed Blue Stream natural gas pipeline in Turkey. This sequence of top-level visits has brought several important bilateral issues to the forefront. The two countries consider it their strategic goal to achieve "multidimensional co-operation", especially in the fields of energy, transport and the military. Specifically, Russia aims to invest in Turkey's fuel and energy industries, and it also expects to participate in tenders for the modernisation of Turkey's military. The relations during this time is described by President Medvedev as "Turkey is one of our most important partners with respect to regional and international issues. We can confidently say that Russian-Turkish relations have advanced to the level of a multidimensional strategic partnership".