Slovak Volunteer Campaigns
The Slovak Volunteer Campaigns, Slovak uprising of 1848–1849, Slovak Revolt or the Slovak Revolution occurred in Western parts of Upper Hungary (today mostly Western Slovakia) with the aim of equalizing Slovaks, democratizing political life and achieving social justice within the 1848–49 revolutions in the Habsburg Monarchy. It lasted from September 1848 to November 1849.
Source: Wikipedia — Slovak Volunteer Campaigns (CC BY-SA 4.0)