Answer: They feared the empire had become too large to defend efficiently.
It has to be Austria and Hungary - by then they were two separate countries. The other three were Allies and along with britain they occupied Germany in 1945.
Roman Catholic Church
Before the Reformation, all Christians living in Western Europe were part of the Roman Catholic Church. This was led by the Pope, based in Rome. The Church was extremely rich and powerful. In church, services were held in Latin.
Hopes it helps
