Australia has not colonised any other countries.
It does, however, lay claim to seven offshore territories, but these are not countries.
Great Britain
Great Britain.
Spain is the European country that colonized Panama.
Spain was the European country that colonized Venezuela.
European country which colonized Libya and Eritrea is Italy.
The Portuguese colonized Angola
Barbados was colonized by the UK.
Britain colonized zimbabwe.
britain colonized seychelles
France colonized Vietnam.
Macau was originally colonized by Portugal.Portugal
Spain
Britain
The British