It appears that Germany has updated their information several times. So much so that your second link gives me a 404 error

It hasn’t been updated, but Lemmy thinks the colon is part of the URL. https://www.auswaertiges-amt.de/de/reiseundsicherheit/suedsudansicherheit-244250 it’s not about the US but South Sudan, to show what an official travel warning looks like. The US page is just advisory.