 Kọ itẹsiwaju fun paragirafi yii - O ṣiṣẹ gẹgẹbi oṣiṣẹ ti a fun ni aṣẹ ni awọn ẹka ibọn-ogun Royal Yugoslav Army titi di ọdun 1941. Ní ìbẹrẹ Ogun April : , Mesić jẹ ọmọ-ogun ologun ti o jẹ ọmọ-ogun ti o jẹ ọmọ-ogun ti awọn ọmọ-ogun ti Royal Yugoslav Army ti o ṣiṣẹ ni Niš, nitosi aala Bulgaria. 