InfoObject CITY is defined as a display attribute for InfoObject CUSTOMER, and InfoObject COUNTRY is...

Combine CUSTOMER, CITY and COUNTRY in a Open ODS View using a sequence of associations.

Generate external views for CUSTOMER, CITY and COUNTRY, and join them in another calculation view.

Combine CUSTOMER, CITY and COUNTRY in a Composite Provider using a sequence of left outer join operators.

Include CUSTOMER to rows in the BW Query on CUSTOMER and activate the Universal Display Hierarchy setting.

Add COUNTRY as a transitive attribute for CUSTOMER in InfoObject definition.