Yes you are correct I had not followed up on the link posted on the video it turns out this is a Military Vehicle club in Czechoslovakia the link http://www.klub-vm.eu/ If you have google's tool bar the translate page feature works very well and you can translate from Czech to a number of languages
part of their front page
The club focuses primarily on the rescue but the historical and contemporary military technology, cooperation with the Museum, the Army and the Czechoslovak Legionary community, and educational activities in the military history of our Republic. The emergence of the club and cooperation with the museum began in 1995. At that time there was only lit a bunch of enthusiasts. The legal personality of the club was only in 1998, registering at the Ministry of Interior