I know the site I am sharing is mostly fake news. For instance their latest claim (excerpt below) is not supported by any link to external source. But still, the claim was really alarming and I am not sure how to fact-check it.
The video shows "Dark train" not listed in any official route plans, full of American tanks M1A2 Abrams. These tanks are being routed through Slovakia to Ukraine
Source AE News (link goes to machine translation from Czech to English) (5 Oct 2018)
Direct link to video on Vimeo