Comment by tzs

It is actually fairly common for bodies of water that have more than one country on their shores to have different names in different countries. Same goes for mountains and mountain ranges on borders.

Some examples for bodies of water:

• Persian Gulf/Arabian Gulf

• Sea of Japan/East Sea

• South China Sea/West Philippine Sea/East Sea

• English Channel/La Manche

Some examples for mountains and mountain ranges:

• Mount Everest/Sagarmāthā/Chomolungma

• K2/Chogori

• Kjølen/Fjällen (the range on the Norway/Sweden border)

• Krušné hory/Erzgebirge (the range on the Czech Republic/German border)

• The Misty Mountains/Hithaeglir

• The White Mountains/Ered Nimrais

Yes, the renaming by the Trump administration was stupid, and almost certainly will be reversed.

Nevertheless the US government is now required to use those names. If the FAA needs to mention those places in a NOTAM, or NOAA in a weather alert, etc., they use those names now, so it would be a mistake for a map company to just ignore them.