The Constitution of Bosnia and Herzegovina is the constitution in international contractual form, since it is an integral part of a larger peace agreement signed by Alija Izetbegović, Franjo Tuđman and Slobodan Milošević, three presidents of countries involved in war in Bosnia and Herzegovina, as well as the representatives of European Union (Felipe González), United States (Bill Clinton), Germany (Helmut Kohl), United Kingdom (John Major), France (Jacques Chirac) and Russia (Viktor Chernomyrdin). This nature of the Constitution was also of vital importance for the Constitutional Court of Bosnia and Herzegovina, in its landmark decision on constituency of peoples (U-5/98), since it declared that the Constitution could be interpreted as a treaty defined in Vienna Convention on the Law of Treaties from 1969, which was of great importance in the interpretation of the Preamble of the Constitution.