Abstract
During the first twenty years of the United Nations' existence the patterns of its activities changed significantly. One of the most important changes took place in the practices of the Secretary-General. While the most noticeable development was his assumption of the position of executive agent for peacekeeping forces, a less noticeable but equally important one occurred in his activities as an agent of peaceful settlement. The importance of the latter change was that not only did a single official of the United Nations assume new functions and become instrumental in the settlement of a number of international conflicts, but the Organization as a body gained a more influential role in international politics.

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