Ulmanis was one of the principal founders of the Latvian People's Council (Tautas Padome), which proclaimed Latvia's independence on November 18, 1918 with Ulmanis as the Prime Minister of the first Provisional government of Latvia.
Ulmanis a fost unul dintre principalii fondatori ai Consiliului Popular Leton (Tautas padome⁠(d)), care a proclamat independența Letoniei față de Rusia la 18 noiembrie 1918, cu Ulmanis ca prim-ministru.