The Vlachs (or Wallachians) were a pastoralist community in Moravian Wallachia of eastern Moravia in what is today the Czech Republic.
Jan Amos Comenius wrote in 1620: "Moravians of the mountains around Vsetín, called Wallachians, are a warlike people… they refused to accept the Habsburg yoke and for three whole years defended their freedom with the sword".
Later, in 1624, he wrote: "the inhabitants of the lordship of Vsetín and the mountains thereabout continued to resist with arms and could not be brought to deny their faith or offer submission".
Due to this situation, in 1632 the Catholic Church and the Habsburg Empire took coercive measures: "the inhabitants of Valašsko were Vlachs and hence utterly infractory".
Albrecht von Wallenstein, Habsburg military lord of Vsetín, wrote in 1621 about the expected uprising and referred to them as Wallachians against whom he did not have sufficient support to mount a campaign.
Combined Vlach-Swede forces won back portions of Moravia, but then the Swedes withdrew in 1643 to concentrate on a war with Denmark.