Around the end of the Franco-Prussian War (1871), the Parisian workers and some left intellectuals seized power in Paris, and created what we now know as the Paris Commune.
It was democratic, decentralized, and armed though at a more localized militia level. Workers could freely associate, public meetings were encouraged, public laws, education and finance were governed out of a central elective workers council. There was no Red Terror
After some weeks, it was crushed by the reactionary French army with most of the participates being executed but later Karl Marx and Frederick Engels went on to dub the Socialist & Democratic Commune as the best real-life form of the Marxist Dictatorship of the Proletariat seen up to the time.
So 3 questions:
1. What could the Commune have done politically to survive longer
2. What could the Commune have done militarily to survive longer
3. If it did indeed survive, how would this have changed the Communist Movement going forward?