insurrection

insurrection 

(noun)

= an act of rebellion or uprising against an established authority 

Examples

During the armed insurrection, many people quickly fled to nearby countries.

The insurrection led to the collapse of the government.

The police investigated the president for insurrection charges.

Reference

https://www.merriam-webster.com/dictionary/insurrection

Here are more examples of using "insurrection":

The insurrection was fueled by widespread dissatisfaction with the ruling regime.

After the insurrection, the country faced years of instability and conflict.

Historical records show that the insurrection was met with a heavy military response.

Many leaders were arrested in the aftermath of the failed insurrection.

Some synonyms for the noun "insurrection":

Rebellion

Uprising 

Revolution 

Resistance

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