Issue #3044261 by Joseph Zhao, cilefen, tstoeckler, Pancho, gnindl: Update...

      'AD' => t('Andorra'),

      'AE' => t('United Arab Emirates'),

      'AF' => t('Afghanistan'),

      'AG' => t('Antigua and Barbuda'),

      'AG' => t('Antigua & Barbuda'),

      'AI' => t('Anguilla'),

      'AL' => t('Albania'),

      'AM' => t('Armenia'),

      'AW' => t('Aruba'),

      'AX' => t('Åland Islands'),

      'AZ' => t('Azerbaijan'),

      'BA' => t('Bosnia and Herzegovina'),

      'BA' => t('Bosnia & Herzegovina'),

      'BB' => t('Barbados'),

      'BD' => t('Bangladesh'),

      'BE' => t('Belgium'),

      'BH' => t('Bahrain'),

      'BI' => t('Burundi'),

      'BJ' => t('Benin'),

      'BL' => t('Saint Barthélemy'),

      'BL' => t('St. Barthélemy'),

      'BM' => t('Bermuda'),

      'BN' => t('Brunei'),

      'BO' => t('Bolivia'),

      'BY' => t('Belarus'),

      'BZ' => t('Belize'),

      'CA' => t('Canada'),

      'CC' => t('Cocos [Keeling] Islands'),

      'CC' => t('Cocos (Keeling) Islands'),

      'CD' => t('Congo - Kinshasa'),

      'CF' => t('Central African Republic'),

      'CG' => t('Congo - Brazzaville'),

      'CW' => t('Curaçao'),

      'CX' => t('Christmas Island'),

      'CY' => t('Cyprus'),

      'CZ' => t('Czech Republic'),

      'CZ' => t('Czechia'),

      'DE' => t('Germany'),

      'DG' => t('Diego Garcia'),

      'DJ' => t('Djibouti'),

      'DM' => t('Dominica'),

      'DO' => t('Dominican Republic'),

      'DZ' => t('Algeria'),

      'EA' => t('Ceuta and Melilla'),

      'EA' => t('Ceuta & Melilla'),

      'EC' => t('Ecuador'),

      'EE' => t('Estonia'),

      'EG' => t('Egypt'),

      'GP' => t('Guadeloupe'),

      'GQ' => t('Equatorial Guinea'),

      'GR' => t('Greece'),

      'GS' => t('South Georgia and the South Sandwich Islands'),

      'GS' => t('South Georgia & South Sandwich Islands'),

      'GT' => t('Guatemala'),

      'GU' => t('Guam'),

      'GW' => t('Guinea-Bissau'),

      'GY' => t('Guyana'),

      'HK' => t('Hong Kong SAR China'),

      'HM' => t('Heard Island and McDonald Islands'),

      'HM' => t('Heard & McDonald Islands'),

      'HN' => t('Honduras'),

      'HR' => t('Croatia'),

      'HT' => t('Haiti'),

      'KH' => t('Cambodia'),

      'KI' => t('Kiribati'),

      'KM' => t('Comoros'),

      'KN' => t('Saint Kitts and Nevis'),

      'KN' => t('St. Kitts & Nevis'),

      'KP' => t('North Korea'),

      'KR' => t('South Korea'),

      'KW' => t('Kuwait'),

      'KZ' => t('Kazakhstan'),

      'LA' => t('Laos'),

      'LB' => t('Lebanon'),

      'LC' => t('Saint Lucia'),

      'LC' => t('St. Lucia'),

      'LI' => t('Liechtenstein'),

      'LK' => t('Sri Lanka'),

      'LR' => t('Liberia'),

      'MC' => t('Monaco'),

      'MD' => t('Moldova'),

      'ME' => t('Montenegro'),

      'MF' => t('Saint Martin'),

      'MF' => t('St. Martin'),

      'MG' => t('Madagascar'),

      'MH' => t('Marshall Islands'),

      'MK' => t('Macedonia'),

      'MK' => t('North Macedonia'),

      'ML' => t('Mali'),

      'MM' => t('Myanmar [Burma]'),

      'MM' => t('Myanmar (Burma)'),

      'MN' => t('Mongolia'),

      'MO' => t('Macau SAR China'),

      'MO' => t('Macao SAR China'),

      'MP' => t('Northern Mariana Islands'),

      'MQ' => t('Martinique'),

      'MR' => t('Mauritania'),

      'PH' => t('Philippines'),

      'PK' => t('Pakistan'),

      'PL' => t('Poland'),

      'PM' => t('Saint Pierre and Miquelon'),

      'PM' => t('St. Pierre & Miquelon'),

      'PN' => t('Pitcairn Islands'),

      'PR' => t('Puerto Rico'),

      'PS' => t('Palestinian Territories'),

      'SD' => t('Sudan'),

      'SE' => t('Sweden'),

      'SG' => t('Singapore'),

      'SH' => t('Saint Helena'),

      'SH' => t('St. Helena'),

      'SI' => t('Slovenia'),

      'SJ' => t('Svalbard and Jan Mayen'),

      'SJ' => t('Svalbard & Jan Mayen'),

      'SK' => t('Slovakia'),

      'SL' => t('Sierra Leone'),

      'SM' => t('San Marino'),

      'SO' => t('Somalia'),

      'SR' => t('Suriname'),

      'SS' => t('South Sudan'),

      'ST' => t('São Tomé and Príncipe'),

      'ST' => t('São Tomé & Príncipe'),

      'SV' => t('El Salvador'),

      'SX' => t('Sint Maarten'),

      'SY' => t('Syria'),

      'SZ' => t('Swaziland'),

      'SZ' => t('Eswatini'),

      'TA' => t('Tristan da Cunha'),

      'TC' => t('Turks and Caicos Islands'),

      'TC' => t('Turks & Caicos Islands'),

      'TD' => t('Chad'),

      'TF' => t('French Southern Territories'),

      'TG' => t('Togo'),

      'TN' => t('Tunisia'),

      'TO' => t('Tonga'),

      'TR' => t('Turkey'),

      'TT' => t('Trinidad and Tobago'),

      'TT' => t('Trinidad & Tobago'),

      'TV' => t('Tuvalu'),

      'TW' => t('Taiwan'),

      'TZ' => t('Tanzania'),

      'UY' => t('Uruguay'),

      'UZ' => t('Uzbekistan'),

      'VA' => t('Vatican City'),

      'VC' => t('Saint Vincent and the Grenadines'),

      'VC' => t('St. Vincent & Grenadines'),

      'VE' => t('Venezuela'),

      'VG' => t('British Virgin Islands'),

      'VI' => t('U.S. Virgin Islands'),

      'VN' => t('Vietnam'),

      'VU' => t('Vanuatu'),

      'WF' => t('Wallis and Futuna'),

      'WF' => t('Wallis & Futuna'),

      'WS' => t('Samoa'),

      'XK' => t('Kosovo'),

      'YE' => t('Yemen'),

  $exclude_codes = [

    // The European Union is not a country.

    'EU',

    // The Eurozone is not a country.

    'EZ',

    // The United Nations is not a country.

    'UN',

    // "Pseudo-Accents" is not a country.

    'XA',

    // "Pseudo-Bidi" is not a country.

    'XB',

    // Don't allow "Unknown Region".

    'ZZ',

  ];