On 27 November 2019, the governments of Libya and Turkey signed a memorandum of understanding to delimit their overlapping maritime claims in the Mediterranean Sea. The maritime boundary is defined by two points, A and B, and spans 18 nautical miles. 

Upon its signature, the Memorandum of Understanding was hotly contested by several countries and international organizations, including Greece, the European Union, and the United States. These, and other nations argued that the Libya–Turkey maritime boundary is not legitimate because it infringes on the sovereign rights of third-party States, and it does not comply with provisions set out in the United Nations Convention on the Law of the Sea.