It's a forgivable typo for Uedem, which is in Germany, close to the Dutch border and does indeed house the NATO Combined Air Operations Centre: https://en.wik

It's a forgivable typo for Uedem, which is in Germany, close to the Dutch border and does indeed house the NATO Combined Air Operations Centre: https://en.wikipedia.org/wiki/Uedem https://en.wikipedia.org/wiki/Uedem