Coolidge was impressed with the success of the Washington Naval Conference of 1921–22, and called a second international conference in 1927 to deal with related naval issues, especially putting limits on the number of warships under 10,000 tons. The Geneva Naval Conference failed because France refused to participate, and also because most of the delegates were admirals who did not want to limit their fleets.Norman Gibbs, "The Naval Conferences of the Interwar Years: A study in Anglo-American Relations" Naval War College Review 30#1 (Special issue Summer 1977), pp. 50–63 Online
