The song is called "Ah, Goodbye, Friend", which is a famous Yugoslav song

Ah, I woke up from my dream that morning

Ah, Goodbye, Friend, Goodbye, Goodbye, Goodbye

That morning when I woke up from my dream, the invaders broke into my hometown

Ah, guerrillas, take me away quickly

Ah, friend, goodbye, goodbye Goodbye

guerrillas, take me away quickly, I really can't bear it anymore

Ah, if I die in the battle

Ah, goodbye, my friend, goodbye, goodbye

If I die in battle, you must bury me

Ah, every time people pass by here

Ah, goodbye, friend, goodbye, goodbye

Every time people pass by here, they say how beautiful the flowers are

Ah, every time people pass by here

Ah, bye, my friend, bye, bye, bye.

Every time people walk by here they say what a beautiful flower it is

Every time people walk by here they say what a beautiful flower it is