At the beginning of World War II Rijeka immediately found itself in an awkward position. The city was overwhelmingly Italian, but its immediate surroundings and the city of Sušak, just across the Rječina river (today a part of Rijeka proper) were inhabited almost exclusively by Croatians and part of a potentially hostile power—Yugoslavia. Once the Axis powers invaded Yugoslavia in April 1941, the Croatian areas surrounding the city were occupied by the Italian military, setting the stage for an intense and bloody insurgency which would last until the end of the war.