Well done!
No public advance notice, so no opportunity for violent leftist thugs like antifa to "counter-protest" and attack them, turning the entire event into a riot, as is their habit.
No specific organization logo, and masks to keep the doxing to a minimum, along with the use of Ryder vans.
The uniform of khaki trousers and black t-shirts is vaguely reminiscent of the "Unite the Right" rally, and I think is connected with the Identity Europa movement, which I think shut down as a formal organization due to harassment, but no doubt still exists in some form.