No, not passports, passports are passports, not national identity documents.
Some countries have national identity documents, some do not. If you don't know what it is, likely your country doesn't have one, and you leave it blank.
No, not passports, passports are passports, not national identity documents.
Some countries have national identity documents, some do not. If you don't know what it is, likely your country doesn't have one, and you leave it blank.
I did used my Passport (issued by country of Origin) as "National Identity" Document as we don't have National Identity ID system before. It's also mentioned in the link you provided. I used it, both for US and Canada Visa applications without any issues. If not a required field, and blank works then ok.