Captain Pierre Peytier, of the topographic service of the French army, had already been invited to Greece by its Governor Ioannis Kapodistrias when the latter had come to Paris in October 1827 to ask the French government for advisers and officers of the army French to organize the army of the newly founded Greek State (during the Greek War of Independence). Thus, on the recommendation of the French Ministry of War, Peytier and three other officers arrived in Greece, in order to train young Greek engineers who would undertake surveying projects, while Peytier himself was to draw the plans for the city of Corinth and the map of Peloponnese. Then when the scientific expedition of Morea landed at Navarino in the Peloponnese on March 3, 1829, Peytier was thus attached to it.