| 18 October 1907 |
26 January 1910 |
Convention respecting the Rights and Duties of Neutral Powers in Maritime War |
| 18 October 1907 |
26 January 1910 |
Convention respecting the Rights and Duties of Neutral Powers, and Persons in War on Land |
| 20 October 1921 |
|
Convention respecting the Non-Fortification and Neutralisation of the Aaland Islands |
| 12 August 1938 |
|
Exchange of Notes between His Majesty's Government in the United Kingdom and the Bulgarian Government regarding the Military, Naval and Air Clauses of the Treaty of Neuilly, &c. |
| 23 July 1962 |
23 July 1962 |
Declaration and Protocol on the Neutrality of Laos |