National security has been the pivotal part of decision making for any country. Most nations have established modern crisis-managing institutions in their countries dealing with the international diplomatic as well as military crises. This research project chooses the United States, Great Britain, France, Germany, Japan and Russian Federation as the objective of study for a better understanding about their respective organs and operation in this regard. In dealing with this research, the author recognizes that the duties as well as privileges of the relevant personnel are very much clear and that they are often adapted to the ever-changing environment and also polish their caliber via maneuvers. The manners of conducting crisis management often have to do with different leaders. They have different backgrounds as well as leadership styles. The results of crisis management, finally, hinge not only on the preparedness of countries themselves, but on the global atmosphere in general. It's been better that, after the end of the Cold War, the world order has offered a better condition for crisis management given the confrontation based on political ideology has descended and the consensus about the common security been uphold.