WORLD HISTORY

Detailed explanation-1: -After Austria refused to recall its troops from the French border and to back down on the perceived threat of using force, France declared war on Austria and Prussia in the spring of 1792; both countries responded with a coordinated invasion that was eventually turned back at the Battle of Valmy in September.

Detailed explanation-2: -In April 1792, France’s Legislative Assembly instigated a revolutionary war with neighbouring Austria. Some claimed this was necessary to ‘save the revolution’ from external threats; others wanted a war to threaten Europe’s other absolutist monarchies.

Detailed explanation-3: -France declares war. On April 20, 1792, the Girondin ministry’s proposal to declare war on Austria (but not on the Holy Roman Empire) was ratified by the Assembly. A month later it likewise undertook war against Sardinia, which had responded affirmatively to the Austro-Prussian circular of April 12, as did Russia.

Detailed explanation-4: -Eight months later, following a vote of the revolutionary-led Legislative Assembly, France declared war on Austria on 20 April 1792; Prussia, having allied with Austria in February, declared war on France in June 1792.

Detailed explanation-5: -During the French Revolution, when France first declared itself a constitutional monarchy and then overthrew and executed its king, the alliance had collapsed entirely. Austria actively tried to restore the French monarchy by going to war with the new French Republic.