It is a call to arms not only against the supposed 'Islamization' of Europe, but also as a rejection of the progressive movements of the last fifty years.
The effect is to create a feel of 'pan-European unity' (*not* the EU) against hostile hordes.
This is Martin Sellner, an Austrian who is a leading light in the movement.
In 2016 he stormed a pro-refugee play at the University of Vienna, in which some of the audience were injured.
Again, make no mistake - they are fascists in the ideology and outlook. They have beginning sending members to training camps.
google.co.uk/amp/s/www.inde…
Look for the location of their conference to be announced & be prepared to show your opposition to fascism.