Why did the Paris Commune, which promoted the idea of protecting social justice, fail? Why did the French troops actively

Why did the Paris Commune, which promoted the idea of protecting social justice, fail? Why did the French troops actively participate in the suppression of the demonstration in Paris, which took place under the patriotic slogans of continuing resistance to the Germans?

The ideas put forward by the Paris Commune were mostly declarative in nature, not supported by action. For a long time, the leaders did not accept a specific program. The ideas did not touch upon the problems of the peasantry, so the peasants remained indifferent to the fate of the commune and did not support the revolution.
Another reason for the fall should be called isolation from other regions of France. In the large industrial centers of the country, communist spontaneous actions were easily and quickly suppressed.
No measures were taken to organize the revolutionary army, so the commune could not defend itself.
These are, perhaps, the main reasons for the fall of the Paris Commune, despite the fact that the ideas of social justice put forward by it at that time were quite progressive and met the requirements of the majority of the people.

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