Japanese MTG in the US?

I’m currently in the US for my semester abroad. Recently I saw some Japanese MTG blisters in some Walmarts. Is this a thing here in the US to have Japanese magic cards?

And if so, why?

If you’re talking about War of the Spark, that’s because that sets Japanese boxes can contain alterantive artwork for a bunch of cards, including Liliana. So distributors worldwide got japanese boxes to sell. I think they did this to celebrate an anniversary.