Any carriage in which according to the contract made by the parties, the place of departure and the place of destination, whether or not there be a break in the carriage or a transshipment, are situated either within the territories of the two High Contracting Parties or within the territory of a single High Contracting Party, if there is an agreed stopping place within a territory subject to the sovereignty of another power, even though that power is not a party to the Convention.