First, the self-determination of peoples had grown in importance with the end of World War I. Second, Iceland had shown that it was capable of governing its own affairs (starting with Home Rule in 1904) and relations with other states (during World War I when Iceland was cut off from Denmark).
For det andet havde Island vist, at det var i stand til at styre sine egne anliggender (begyndende med hjemmestyret i 1904) og forholdet til andre stater (under 1. verdenskrig, da Island var afskåret fra Danmark).