I never knew about this battalion either, and that’s definitely a product of systemic racism. Even in the next world war, which began twenty years after the first ended, racism still dictated who got the glory and who got the shaft. And racial segregation in the forces hadn’t ended, either. At a time when racialized people from all over the world were fighting against fascism in Europe, that was no small slight.
And if anyone thinks that the work of correcting racism is done or anywhere near it, check out the ratio of up- and down-votes on this YouTube video itself (the comment section is closed, unsurprisingly):
It looks as though the racists are still trying to keep those injustices, burials of history, and non-apologies going.