Those Poles later fought and provided valuable support during the 1846 and 1848 revolutions in Poland. Their resistance was not limited to Polish revolutionary activity, as they also participated in various lands during the Revolutions of 1848, including France, the small principalities of Germany and Italy, Austria, Hungary, and the Danubian principalities Wallachia and Moldavia, the South American countries Argentina and Uruguay (participating in the "Guerra Grande" of 1839-1852) and in the Crimean War of 1853-1856. Additional waves of émigrés left the Polish lands after the failures of the attempted 1848 revolution and the January Uprising of 1863–1864.