Answer:
Required Answer:-
Austria started world war 1
Step-by-step explanation:-
- The Balkans battle Between Countries of Europe between 1912-1913 had already become the preliminary reasons .
- But In 1914 when The pressure between Serbia and Austria due to Adiatric Sea Collisions was going on .
- Then The prince and princess of Australia Had been killed by a member of blackhand gang .
- Austria directly suspect Serbia for this.
- On July 23, 1914 Austria sent a 10 pages agreement for Serbia .
- Serbia signed most of treaties of them on the pressure of western countries but many left.
- Austria Reacted on it and declared war against Serbia on July 28,1914.