✔ 最佳答案
I think Germany , Austria - Hungary and Italy should bear to sole the
responsibility.But among them , Germany should sole the largest one.
This is because the WWI was actually started because Germany declared war on
Russia. Afterwards , other countries like France and Britain joined the war.
(PS : Germany and France , Britain were enemies.)
Besides , Germany started the alliance system which made the European powers
became less willing to settle disputes by peaceful means . Also , the armamants
race between it and Britain also increased the fear and suspicion between the
european powers and Germany.
Therefore , I think Germany should sole the largest responsibility.