His power reached its zenith in 1975 when he dissolved parliament and hosted the Conference on Security and Co-operation in Europe (CSCE) in Helsinki with the assistance of a caretaker government.
Rok 1975 sa dá považovať za zenit jeho politickej moci, kedy rozpustil parlament a hostil Konferenciu o bezpečnosti a spolupráci v Európe (KBSE) v Helsinkách za pomoci dočasnej vlády.