How did nationalism make world war one more likely? include information from internal dissent please

It was pan-Slavic nationalism that inspired the assassination of Archduke Franz Ferdinand in Sarajevo in June 1914, an event that led directly to the outbreak of World War I

Explanation:

If this hadn't happened the war would have taken longer to form making it more likely that we would join the war earlier on.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."