https://www.gatestoneinstitute.org/12464/iran-hollowing-out
The analogies with the former East Germany suggest that Iran, too, is ripe for regime change. They also suggest that a change may come in weeks, months or years, depending on chance events and particularly on whether the local authorities and their security forces, at least in some areas, get tired of killing people.
What is likely to push such developments forward? The answer is that the new American policy, whether by chance or intent, may be as good as anything.
On December 28, 2017, major protests against the Iranian regime broke out in Mashhad and quickly spread to numerous other urban centers. Mostly merely noisy at first, some turned violent and eventually the Islamic Revolutionary Guards Corps (IRGC) suppressed the phenomenon, killing some and arresting thousands of others. Protests have continued, but news about them is scanty. How are they to be evaluated?
There are interesting parallels with the twilight of the East German regime. By a coincidence, the Iranian regime is in its fortieth year and the East German regime suddenly collapsed just after its leaders had held a large-scale pompous celebration of its fortieth anniversary in the capital, East Berlin.
At its downfall, the government and security apparatus of the so-called “German Democratic Republic” appeared to be, as always, thoroughly in control, yet it took only a few chance events to start a domino effect that swept it away. There was the swell of holidaymakers who drove their polluting “Trabis” into Hungary or Czechoslovakia and thence via Austria into West Germany, because those East European countries had stopped preventing them. Beginning on September 4, 1989, there were the Monday marches that set out after the morning “Prayer for Peace” in Leipzig’s St. Nicholas Church.