ABSTRACT
After World War II, conditions became difficult and complicated to reach an agreement between the great powers to finalize the structures of a military committee, which they no longer really believed in. The consequence of the failure to establish the organization’s military structures was twofold: it left the transitional security measures in force, and it deprived the organization of effective military structures. This in turn deprived the Security Council of technical support in military affairs as well as having a military arm to carry out its decisions. As a consequence, other tools for maintaining international peace and security later emerged through the establishment of observer missions and peacekeeping operations implemented and led by the Secretary-General. The Secretariat, to which the Security Council had delegated the conduct of these new operations, therefore replaced the Military Staff Committee (MSC) in developing the modus operandi of UN peace operations.
