Uno was created in 1945 to resolve quietly the international controversies. In 1948 was signed the Universal declaration of human rights. Then was signed a lot of conventions and agreements about human rights. Several not government organizations combat with Uno for maintaining peace, justice and fundamental rights. After 50 years and over, it’s normal to ask if objectives are been achieved. An high numbers of crimes was committed in that period: crimes against women, children, against race, etc. After the end of the cold war international instability is increased. International law wasn’t always effective. Main problem is just the international law effectivity. «Effectivity» means respect of international law from all the states that accept it. It’s a necessary but not sufficient condition for law effectiveness. Connected problem is the absence of a real international police that could enter in every state even more in absence of his consent. For many authors this have to exist, how the Charter of the United Nation says (art. 43). Anyway, organizational-administrative coverage of decision is not warranted. An important question is financing of the United Nations peacekeeping operations. They are financed with contributes of the states members like the whole Uno is financed. But often, these contribution are sent with delay and peacekeeping operations can’t develop their mandate. Actually there isn’t the possibility to create a tribunal for victims of Tienanmen square or for victims of russian forces in Chechenia, but the way in the direction to create a real international justice seems practicable. But crucial in any case is availability of the necessary means.