Respuesta :
"Despite the fact that Serbia did not truly lose its independence until the ... had lined up against Austria-Hungary and Germany, and World War I had begun."
-Hope that helped :)
-Hope that helped :)
Heyo! ;D
Answer:
I believe the answer is "When Serbia declared war on Austria it also declared war on Germany.", but I am only 99.9% sure it is correct. Good luck!
~Artastic~