 Nyorai kupfuurira kweiyi ndima - Nokupinda kweGermany muYugoslaviamusi wa6 Kubvumbi 1941, Royal Yugoslav River Flotilla yakaiswa pamberi peDanube neTisa nzizi dzakatumwa kuvhara nzira dzemvura dzemukati kuti dzipinde muvengi uye kupa rutsigiro kuzvikamu zveRoyal Yugoslav Army. Mumazuva okutanga okurwiswa, River Flotilla yakabudirira kuita mabasa okurwisa kurwisa maAxis mauto airwisa nhandare yendege yeGermany paMohács, Hungary musi wa6 April 1941 uye zvakare mazuva maviri gare gare. Musi waApril 11, 1941, zvikamu zve flotilla zvakadzokera kuNovi Sad pasi pekurwiswa kwakadzokororwa neGerman dive-bhomba. Mangwanani-ngwanani aApril 12, 1941, boka revarwi veJunkers Ju 87 vanobhururuka-mabhomba veGermany vakarwisa vatariri veRwizi rweYugoslavia pedyo neČelarevo vachirova vatariri Drava. Kunyange zvazvo mabhomba anoverengeka akakundikana kupinza ngarava 300mm gobvu uriri zvombo, rimwe bhomba akarova tarisisa wacho funnel achiuraya ngarava wacho mukuru Commander Aleksandar Berić uye achiuraya 53 kubva 67 varume vashandi. Mukati mokurwiswa, varwi vanorwisa ndege vakati ndege 12 dzemuvengi dzakaparadzwa, kusabatanidza ndege yeAxis yakaparadzwa paMohács. Zvimwe zvitatu zveYugoslav monitors zvakaparadzwa nevashandi vavo musi wa 12 April 1941 sezvo mauto eGermany neHungary akatora zvigaro zvavo uye Yugoslavia river systems. Nokukurumidza pashure pacho, Yugoslav River Flotilla yakaguma kuvapo pamwe nokugara kweYugoslavia neNazi Germany, Hungary, Italy neBulgaria. 