Question

How did the assassination of Archduke Franz Ferdinand lead to ​ World War I ​ ?

War broke out when Serbia refused to agree to a list of Austrian demands after the assassination.

Troops protecting the archduke retaliated by attacking Serbian military positions after the assassination.

Russian troops invaded Serbia after the assassination, seeking revenge for the death of the czar’s cousin.

Germany ended diplomatic relations with Austria after the assassination, resulting in the outbreak of war.

Answer 1

Germany ended diplomatic relations with Austria after the assassination, resulting in the outbreak

Step-by-step explanation:

Answer 2

Answer: Following the assassination of Franz Ferdinand, Austria Hungary was hella mad about it, so they went to Germany, and was like hey, help us get revenge on Serbia. So the two of them teamed up and declared war on Serbia on July 28th. Shortly after (a couple of days) Germany declares war on Russia, and then after Serbia's ally invaded France, that pushed Great Britain to declare war on Germany.

(hope this helps)