> Whenever there's a revolution there's a potential counter-revolution. It's rare to be able to spike the guns with carnations, like Portugal.
Portugal's carnation revolution is a clear example that change has to come from within.
The man behind the coup was General Spínola, the man in charge of Portugal's fight against independence movements in Portuguese guinea. Prior to the revolution he wrote a book on how the war was unwinnable to pressure Portugal's ruling dictatorship into a political solution, to which the ruling Portuguese dictator refused. Consequently a couple of coups were attempted and when they finally succeeded the dictator surrendered and General Spínola took over as interim president of Portugal, enactig the political changes he defended such as ending fighting and jump-starting a transition to a democratic regime.
Meanwhile, the dictatorship's single-party parliament already included groups of representatives, such as Sá Carneiro's liberal wing, who were not only openly against the dictatorship but also openly advocated for a transition to democracy.
You can't get more internal than that.