Australia
noun: Australian(s)
adjective: Australian
Austria
noun: Austrian(s)
adjective: Austrian
Azerbaijan
noun: Azerbaijani(s)
adjective: Azerbaijani
Bahamas, The
noun: Bahamian(s)
adjective: Bahamian
Bahrain
noun: Bahraini(s)
adjective: Bahraini
Bangladesh
noun: Bangladeshi(s)
adjective: Bangladeshi
Barbados
noun: Barbadian(s) or Bajan (colloquial)
adjective: Barbadian or Bajan (colloquial)
Belarus
noun: Belarusian(s)
adjective: Belarusian
Belgium
noun: Belgian(s)
adjective: Belgian
Belize
noun: Belizean(s)
adjective: Belizean