Helmut Kohl Quotes
It was a stroke of luck that there were about four to six leaders in power in the mid-'80s who really trusted one another and could really make things happen.
Kohl, Helmut. Erinnerungen: 1982-1990. Droemer Knaur, 2005, p. 980.
The Romans had experimented with two leaders where each day command shifted from one to the other. It did not work very well and was not continued. Instead the Western world has moved toward a singular leader with very limited powers and many checks and balances plus the possibility of removal.
Helmut Josef Michael Kohl was a German statesman and politician of the Christian Democratic Union (CDU) who served as Chancellor of Germany from 1982 to 1998 (of West Germany, 1982–1990; and of reunified Germany, 1990–1998) and as chairman of the CDU from 1973 to 1998. Kohl's 16-year tenure is the longest of any German Chancellor since Otto von Bismarck, and oversaw the end of the Cold War, the German reunification and the creation of the European Union.