Other crucial issues included the adoption of the Treaty of Versailles, the ruling of the Belgian Congo as an overseas possession of the Kingdom of Belgium along with the League of Nations mandate of Ruanda-Urundi, the reconstruction of Belgium following the war, and the first five years of the Great Depression (1929–1934).
Peristiwa penting lainnya termasuk penerapan Perjanjian Versailles, putusan Kongo Belgia sebagai kepemilikan luar negeri Kerajaan Belgia, rekonstruksi Belgia setelah perang, dan lima tahun pertama Depresi Besar (1929 - 1934).