The definition given refers to legalism.

The concept of legalism refers to a world-order approach that considers international law as the exclusive means to sustaining and promoting world order. Although the end product of its proponents has been a world government or world federalism, they however, acknowledging the difficulty involved in this process, have generally entertained the idea that world government may be created by first establishing a world confederal structure. Federalism and Confederalism, so the argument goes, would and should be achieved by uniting the world around a common global law. A general international organization, more specifically the UN, would be given the right and the capability to enforce international rules on the states and to bring any international discussion to the World Court.