The Greek army had relied on French models, and was often trained by French officers, ever since the first attempts to establish a regular army during the Greek War of Independence (1821–29). The first official French military mission to Greece occurred in 1828–31, as part of the Morea expedition. The Charilaos Trikoupis government invited the next, in 1884–1887 under General Victor Vosseur; Eleftherios Venizelos called the 1911–1914 mission under General . Another mission under General came to Greece in 1918 as part of its participation in World War I, staying on until March 1923, when it was withdrawn on Greek request, citing budgetary constraints but most probably as a political gesture towards France.