West and East Germany united on Oct. 3, 1990, capping a process that started less than 11 months earlier when the east's communist leadership opened the Berlin Wall under pressure from massive demonstrations. Evening out the differences between east and west has been a far slower process, and some inequalities persist even now.
Joachim Gauck, Germany's president since 2012, is another easterner, former pastor and pro-democracy activist.
In a speech at this year's unification celebrations in Frankfurt, Gauck compared the integration of hundreds of thousands of newly arrived refugees to the task of reuniting East and West Germany 25 years ago.
"Like in 1990, a challenge awaits us that will keep future generations busy," he said. "But contrary from before, what did not belong together up to now, should now grow together."
Since reunification, some 1.5 trillion to 2 trillion euros (USD 1.7 trillion to USD 2.2 trillion dollars) have been funneled into the east to help bring the region up to speed after its outmoded industry collapsed. A steady post-1990 drain of people from east to west appears finally to have been stemmed, with more people moving east than the other way for the first time in 2013.
Former Chancellor Helmut Kohl's promise to easterners that they would live in "blooming landscapes" no longer looks far-fetched.
"This is true for many parts of former East Germany," said prominent German historian Heinrich August Winkler. "The beautiful countryside of the Mecklenburg lake district, and the Baltic Coast, as well as the cleanup of the polluted industrial areas in Saxony and elsewhere, a lot has happened there.
