More than two decades after the collapse of the Soviet Union, the Republic of Georgia passed an important democratic milestone this week when the opposition party won the  parliamentary elections and the incumbent president, Mikheil Saakashvili, conceded defeat.  The door is now open for the first peaceful transition of power in modern Georgia’s history. The development is also a landmark for the Eurasian region of former Soviet Republics, where most elections have been rigged and often violent. …  Since the collapse of the Soviet Union twenty-one years ago, the fifteen former Soviet Republics have followed mostly bumpy paths toward and away from democracy. On Monday, Georgians stunned the world when an opposition coalition led by eccentric billionaire Bidzina Ivanishvili won the parliamentary election there. President Mikheil Saakashvili conceded defeat on Tuesday, paving the way for Ivanishvili’s Georgian Dream bloc to form a new government. When Ivanishvili becomes prime minister, as expected, it will be the first time in Georgia’s history that the government will have changed at the ballot box rather than through revolution.