February 8, 1831
Fought in September 1831 between Imperial Russia and Poland
1831 treaty of Argentina
Conflict between Ras Marye of Yejju, Regent of the Emperor of Ethiopia, and his rival from Tigray, Dejazmach Sabagadis of Agame
1831 battle of the Polish November Uprising
Battle of the Polish November Uprising
Military conflict in Pakistan in 1831
1831 during Poland's November Uprising
1831 naval engagement between France and Portugal