The term often refers to Anglo-French relations from the 1815 end of the Napoleonic Wars to the 1904 Entente Cordiale.
On 7 January 1948, the United States, Britain and Canada, concluded an agreement known as the modus vivendi, that allowed for limited sharing of technical information on nuclear weapons which officially repealed the Quebec Agreement.3
Angus Stevenson (19 August 2010). Oxford Dictionary of English. OUP Oxford. pp. 1139–. ISBN 978-0-19-957112-3. 978-0-19-957112-3 ↩
"United Nations Treaty Collection: Definitions". Archived from the original on 20 May 2015. Retrieved 19 May 2015. https://web.archive.org/web/20150520185430/https://treaties.un.org/Pages/Overview.aspx?path=overview%2Fdefinition%2Fpage1_en.xml#modus ↩
"Minutes of the Meeting of the Combined Policy Committee, at Blair House, Washington, D.C., January 7, 1948". United States Department of State. Archived from the original on 1 December 2017. Retrieved 22 November 2017. https://history.state.gov/historicaldocuments/frus1948v01p2/d66 ↩