Marginally outside our subject, but this trip was led by Dwight Eisenhower, and the film is most entertaining.
There is a small debate in The Encyclopaedia That Any Clown Can Edit as to whether a tank, either an FT or an M1917, accompanied the convoy. I can't see one in the film, but you will see very clearly a Holt Artillery Tractor, which might be what has confused certain sources.
https://youtu.be/hZJKxkfF1D8
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Yes, no sign of a tank. The little tracked mover is shown several times, at 11.51 it's being unloaded off the back of a truck, the combined weight having caused a wooden bridge to fail.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.