Final answer:
The National Assembly introduced radical reforms in France, abolished aristocratic privileges, and declared war on Austria, which led to a turbulent period of internal and external conflicts post-1789.
Step-by-step explanation:
The National Assembly played a significant role in the conflicts that developed in France after 1789. Among its various actions, it introduced radical reforms that reshaped the political landscape of the country. It ushered in a series of measures that abolished aristocratic privileges, leading to the creation of a constitutional monarchy and the declaration of new rights for citizens.
However, the reforms also ignited internal conflicts and provoked external threats, which culminated in France declaring war on Austria in 1792. The radical and moderate factions within the National Assembly and the subsequent National Convention would vie for control, influencing the direction of the revolution and the governance of France.