This is a guest post from Hannes Hansen-Magnusson, a Lecturer in International Relations at Cardiff University (contact by email: Hansen-Magnusson”at”Cardiff.ac.uk or via twitter: @HansenMagnusson) For centuries the political struggle over the legal status of global oceans was presented as one of mare clausum vs. mare liberum. These concepts concerned the possibility of movement as well as rights and responsibilities of seafaring nations and coastal states which had sometimes been the subject of small-scale physical confrontations at sea, such as the so-called Cod or Turbot Wars, but also of...






