Secret treaty in the context of "Treaty of London (1915)"

The Sykes–Picot Agreement (/ˈsaɪks ˈpiːkoʊ, - pɪˈkoʊ, - piːˈkoʊ/) was a 1916 secret treaty between the United Kingdom and France, with assent from Russia and Italy, to define their mutually agreed spheres of influence and control in an eventual partition of the Ottoman Empire.

The agreement was based on the premise that the Triple Entente would achieve success in defeating the Ottoman Empire during World War I and formed part of a series of secret agreements contemplating its partition. The primary negotiations leading to the agreement took place between 23 November 1915 and 3 January 1916, on which date the British and French diplomats, Mark Sykes and François Georges-Picot, initialled an agreed memorandum. The agreement was ratified by their respective governments on 9 and 16 May 1916.

The United Kingdom – United States of America Agreement (UKUSA, /juːkuːˈsɑː/ yoo-koo-SAH) is a multilateral agreement for cooperation in signals intelligence between Australia, Canada, New Zealand, the United Kingdom, and the United States. The alliance of intelligence operations is also known as the Five Eyes. In classification markings this is abbreviated as FVEY, with the individual countries being abbreviated as AUS, CAN, NZL, GBR, and USA, respectively.

Emerging from an informal agreement related to the 1941 Atlantic Charter, the secret treaty was renewed with the passage of the 1943 BRUSA Agreement, before being officially enacted on 5 March 1946 by the United Kingdom and the United States. In the following years, it was extended to encompass Canada, Australia, and New Zealand. Other countries, known as "third parties", such as West Germany, the Philippines, and several Nordic countries, also joined the UKUSA community in associate capacities, although they are not part of the mechanism for automatic sharing of intelligence that exists between the Five Eyes.

During the 2010s, international media reports revealed new operational details about the Anglophone cryptographic agencies' global surveillance of both foreign and domestic nationals. The reports mostly relate to top secret documents leaked by ex-NSA contractor Edward Snowden. The documents consist of intelligence files relating to the U.S. and other Five Eyes countries. In June 2013, the first of Snowden's documents were published, with further selected documents released to various news outlets through the year.

These media reports disclosed several secret treaties signed by members of the UKUSA community in their efforts to implement global surveillance. For example, Der Spiegel revealed how the German Federal Intelligence Service (German: Bundesnachrichtendienst; BND) transfers "massive amounts of intercepted data to the NSA", while Swedish Television revealed the National Defence Radio Establishment (FRA) provided the NSA with data from its cable collection, under a secret agreement signed in 1954 for bilateral cooperation on surveillance. Other security and intelligence agencies involved in the practice of global surveillance include those in Australia (ASD), Britain (GCHQ), Canada (CSE), Denmark (PET), France (DGSE), Germany (BND), Italy (AISE), the Netherlands (AIVD), Norway (NIS), Spain (CNI), Switzerland (NDB), Singapore (SID) as well as Israel (ISNU), which receives raw, unfiltered data of U.S. citizens from the NSA.

The Treaty of Defensive Alliance was a secret defense pact between Bolivia and Peru. Signed in the Peruvian capital, Lima, on 6 February 1873, the document was composed of eleven central articles that outlined its necessity and stipulations and one additional article that ordered the treaty to be kept secret until both contracting parties decided otherwise. The signatory states were represented by the Peruvian Foreign Minister José de la Riva-Agüero y Looz Corswaren and the Bolivian Envoy Extraordinary and Minister Plenipotentiary in Peru, Juan de la Cruz Benavente.

Ongoing border disputes between Bolivia and Chile worsened South America's tense political environment, which was made all the more precarious by a global economic depression. The system of mutual defense established between Bolivia and Peru sought to protect their national security and the regional balance of power by containing Chilean expansionism, which was fueled by Chile's economic ambitions over the mineral resources of the Atacama Desert. The pact's stated intentions were to guarantee the integrity, independence, and sovereignty of the contracting parties.