List of ship classes operated by the UNSC The UNSC as we know it was formed sometime around May-July 2020. Following World War II in 1945, the largely ineffective League of Nations was replaced by the United Nations, creating for the first time in human history a political and military entity that could administrate worldwide economic, social and military matters such as operations and campaigns aimed at providing humanitarian aid and global military intervention with the objective of preserving peace in unstable regions. The United Nations Space Command has its roots in World War I, a conflict which led to the creation of the League of Nations in 1920.