According to stephen tongue what was one cause for tension between austria and serbia

Many Serbians wanted to claim more land from Austria-Hungary, they thought  kicking out the Ottomans wouldn't be enough. Many Serbians were living in Austria-Hungary, and they were not very happy because discrimination and shortage of supplies was common. Serbian Nationalism was a cause of World war 1, when a Serbian nationalist, Gavillo Princip, assasinated Archduke Franz Ferdinand.

i believe he was the 5th king of uruk. so c

the united states broke it's neutrality was the constant german sinking of trading vessels resulting in the loss of lives, one example would be the lusitania.