Germany was not the only foreign government with which Henlein was in contact. Though the SdP had won the majority of the seats in the Sudetenland, the numerical dominance of the Czech parties ensured that the SdP was always going to be an opposition party. The main right-wing Czech parties favored preserving Czechoslovakia as a unitary state, and Henlein's talks with the Czech right quickly floundered on this issue. Czech public opinion was overwhelmingly hostile to calls to turn Czechoslovakia into a federation. Unable to influence "the Castle", which rejected out of hand Henlein's call for autonomy, Henlein turned to courting foreign governments, especially Britain, out of the hope that they might pressure "the Castle" to grant autonomy to the Sudetenland. Henlein's voters had expected him to achieve his platform of autonomy for the Sudetenland and his turning towards "foreign policy" in 1935 reflected his fear of disappointing his supporters. The fact that public opinion in Britain in the interwar period tended to view the Treaty of Versailles as a French-engineered "Carthaginian peace" made Britain the most favorable of the victors of 1918 to revising the Treaty of Versailles and it was towards Britain that Henlein placed his main hope in pressuring "the Castle" for concessions.