SQL Select where condition : value 1 <> value 2

Need your help to know if possible to select values from a table with the below condition :

Table content : matching between 2 objects (Id_obj_A; name_obj_A; country_obj_A; Id_obj_B; name_obj_B; country_obj_B)

Select * from table Where (only if country_obj_A <> country_obj_B)

Many thanks for your help