Treaties, States Parties and Commentaries
  • Print page
The Nyon Agreement, 14 September 1937.
State parties (0)  - State signatories (9)

During the Spanish Civil War, nine Powers agreed to take collective measures to suppress attacks by submarines against merchant vessels. The Agreement refers in the preamble to the provisions of the London Treaty of 1930 and the procès-verbal of 1936 concerning submarine warfare. In the Supplementary Agreement of 17 September 1937 the same Powers made the principles of the first Agreement applicable to attacks by surface vessels and aircraft.
Diplomatic Conference



09.09.1937 - 14.09.1937, Nyon


United Nations


English, French

D.Schindler and J.Toman, The Laws of Armed Conflicts, Martinus Nijhoff Publishers, 1988, pp.887-889.

Full text