The main cause of unstable leadership in the empire was due to the fact that
Roman soldiers were promised money to overthrow the emperor.
the death of Constantine caused the empire to be divided into three parts.
Diocletian's new split system of Latin West and Greek East failed.
the emperors were too busy purchasing luxury items to rule the empire.

Germany italy and japan formed the tripartite pact in part because they: a. hoped to convince the united states to stay out of world war ii b. share the ruling philosophies based on communist economics c. resented the agreements they were forced to sign at the munich conference d. believed their territories were threatened by aggressive foreign states