Final answer:
Robespierre initially opposed war with Austria, but later supported the French revolutionary government's declaration of war in 1792.
Step-by-step explanation:
Maximilien Robespierre, a leading figure of the French Revolution, initially opposed the idea of going to war with Austria, as he wanted to focus on internal reforms to keep the constitutional monarchy. However, as the leader of the Jacobins, he supported the war against Austria declared in 1792 when radical parties grew in strength and sought to combat the external threats that conspired to restore Louis XVI's power. This period of French history marked by the rivalry between radical groups like the Girondins and the Jacobins, and the subsequent Reign of Terror, culminated in Robespierre's own downfall and execution in 1794.