The Treaty on Open Skies in the Face of Withdrawals
[Maria Xiouri is a Lecturer in Law at the University of Bedfordshire. Her book The Breach of a Treaty: State Responses in International Law was published by Brill in March 2021.] On 22 May 2020, the US submitted a notice of its intention to withdraw from the Treaty on Open Skies (‘OST’) to the Treaty Depositaries and to all other States parties to the Treaty (33...