Orašje is a city and the capital of Posavina Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. It is si…Orašje is a city and the capital of Posavina Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. It is situated in the northern part of Bosnia and Herzegovina, on the banks of river Sava near the border with Croatia. As of 2013, it has a population of 19,861 inhabitants.