Theres an association with pastries as French, sushi as Japanese, pho as Vietnamese, shrimps on the barbie as Australian etc.

In the past this made sense as travel was limited so each culture would develop its food independently, leading to the variations we have now. However with a more connected globe many foods invented in the last 50 or so years have received nationality i.e. the "Shaking Beef" which is associated with Vietnamese but you cant actually find it in Vietnam since it wasnt invented there. Despite this its given the Vietnamese tag, can anyone explain why?