In 1919 Liechtenstein and Switzerland signed a treaty under which Switzerland assumes the representation of Liechtenstein interests at the diplomatic and consular level in countries where it maintains a representation and Liechtenstein does not.
Pada tahun 1919, Liechtenstein dan Swiss menandatangani perjanjian di mana Swiss menjadi perwakilan kepentingan tingkat diplomatik dan konsuler bagi Liechtenstein di negara-negara di mana Swiss memiliki perwakilan dan Liechtenstein tidak.