Which military action led to the start of world war i? germany’s invasion of france russia’s invasion of germany austria-hungary’s invasion of serbia italy’s invasion of bosnia

Why didn’t the united states participate in the league of nations? the u. s. senate did not want the country to join. president wilson did not want the country to join. the league of nations was only for european countries. the league of nations had failed to prevent world war 1

Could anything have been done through compromise to stop it, or did it have to happen?

(05.04 mc) how did the roman transportation system keep the empire strong? plz