Doesn't mean anything really, especially as far-right extremists are not the brightest bulbs.
Slovak neonazis were fighting in Donbass on the side of Russians/separatistit, because that side invested heavily in propaganda (abroad, not only domestic) and presented itself as a front against anything modern and especially the EU (which is the incarnation of evil to them), so reactionary forces are naturally drawn to them.
Slovak neonazis were fighting in Donbass on the side of Russians/separatistit, because that side invested heavily in propaganda (abroad, not only domestic) and presented itself as a front against anything modern and especially the EU (which is the incarnation of evil to them), so reactionary forces are naturally drawn to them.