includes/countries.php adapts country and territory names and alpha-2 codes from
iso-codes ISO 3166-1 data, installed in /usr/share/iso-codes/json/iso_3166-1.json.
Source: https://salsa.debian.org/iso-codes-team/iso-codes
Copyright 2001-2008 Alastair McKinstry
Copyright 2004-2016 Christian Perrier
Copyright 2005-2026 Dr. Tobias Quathamer
Licensed under LGPL version 2.1 or later; see iso-codes-LGPL-2.1.txt.
Changes: retained alpha-2 codes and common English names, sorted alphabetically,
and converted the reference list to a PHP array. No runtime service is used.
