Self-contained regimes in international law

Due to the existence of some circumstances and factors, some branches of international law have been treated as a ''self-contained regimes''. The autonomous of these branches occasionally has led to “fragmentation of international law”. These regimes are coming to existence in order to be autonomous and complete independence from general international law or lex generalis. This article will provide a necessary generality in this regard, then, fragmentation of international law and the self-contained regimes in the light of diplomatic and consular law, respectively.