That's Argentina, not Uruguay. According to the rumors, various Nazis fled to South America at the end of the regime. It seems that Argentina was "chosen" for this stereotype.
I see it now. I only saw the sun and the blue/white stripes first and assumed it was just the lack of detail that eliminated the multiple stripes of Uru.
[–] Rapua [S] 0 points 5 points 5 points (+5|-0) ago (edited ago)
This map was a huge collaboration of various redditors on /r/polandball (full list) which was posted on 8 Aug 2016. If the image is too big you should see this album of smaller images
EDIT: i.sli.mg rehost, i.sli.mg album