Centralized power: all their power went up efficiently and bureaucratically (although that may seem like an oxymoron) to one small group of people. In one case, the Caesar and the Senate (which still had a role during the Pax Romana); in the second case, the Pope and his Cardinals.
C. it caused a major upset to Georgia's cash-crop economy.
<span>It need to defeat France on the Western front before Russia could prepare to attack on the Eastern front.</span>