Hundreds of neo-Nazis were expected to congregate Friday, which marks Adolf Hitler's birthday, for a two-day festival in a small eastern German town where anti-fascist groups have vowed counter-protests.
A major police deployment aims to prevent violence during the "Schild und Schwert" (Shield and Sword, or SS) festival near the Polish and Czech borders that is expected to also attract eastern European extremists.
"You will see police on every corner," the local police chief told a regional newspaper, with hundreds of officers to brought in from other states, while Polish authorities across the Neisse river border also said they would step up patrols.
Organisers argue that the "Reconquista Europa" festival -- featuring far-right music, speeches, martial arts, a tattoo convention and merchandise stalls -- is a political event, granting it legal protection under the German constitution.
It comes as Germany, after a mass influx of asylum seekers, is witnessing a revival of a far-right and ultra-nationalist groups and has seen the anti-immigration Alternative for Germany (AfD) enter parliament.
The Shield and Sword festival organiser is Thorsten Heise of the far-right fringe party NPD, which is openly xenophobic and anti-Semitic but last year avoided a legal ban because of its small membership and limited influence.
Organisers say they expect some 800 guests at the festival in Ostritz, population 2,300, in a remote region of the ex-communist eastern state of Saxony where the AfD scored some of its strongest results nationwide in 2017 elections.
But anti-fascist or "antifa" activists warn that 2,500-3,500 neo-Nazis from across Europe may show up, with many due to stay just across the nearby Polish border.
"We will not stand and watch when neo-Nazis from Germany and the rest of Europe come for a party to celebrate the Fuehrer's birthday," the initiative "Rechts Rockt Nicht" said online, vowing to "stand together and resist them".
- 'Defend tribe' -
A separate "Peace Festival" has been organised by local politicians, civic groups and church leaders, with conservative Saxony state premier Michael Kretschmer due to give the opening speech.
The event in the town centre will feature speeches, a circus and an Arabic cafe, to show that the town values "cosmopolitanism, tolerance, democracy and peaceful coexistence".
"An inhumane ideology that glorifies Hitler and his deeds has no place in our society," say its organisers.
While neo-Nazis have long staged underground concerts for recruiting and fund-raising, a major two-day music festival with a tent city and tickets selling at up to 45 euros ($55) is seen as an escalation of an emboldened far-right movement.
It is being staged just across the border from Poland's Dolny Slask (Lower Silesia) region, which was invaded by Nazi Germany and whose return to Poland after World War II continues to anger neo-Nazis.
Sascha Elser, spokeswoman of the counter-protest "Rechts Rockt Nicht", said that, ironically, Polish extremists are expected to flock to the festival, where she said German and eastern European neo-Nazis hope to "strengthen relations".
"If this is really to happen, that you can gather and celebrate Hitler's birthday without any problems or consequences, it is a clear sign that our law and society are sick."
The Shield and Sword lineup features bands linked to the far-right and hooligan scene.
Also on the programme is a "fight night" event called "Kampf der Nibelungen", a reference from Germanic and Norse mythology, featuring boxing, kickboxing and mixed martial arts.
"To live is to fight," declares the event website. "At all times it was fighters who defended their clan, their tribe, their homeland."
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