War of the Austrian Succession

War of the Austrian Succession
Part of the French–Habsburg rivalry and the Austro-Prussian rivalry

Left to right:
Date16 December 1740 – 18 October 1748
(7 years, 10 months and 2 days)
Location
Result Treaty of Aix-la-Chapelle (1748)
Territorial
changes
Belligerents
Commanders and leaders
Strength
1740:
200,000
116,620
1742:
120,000
70,000
40,000
35,000
1745 naval strength
47 ships of the line
32 ships of the line
1747:
204,000
120,000
127,000
55,000
1742:
30,000
1745 naval strength
110 ships of the line
34 ships of the line
Casualties and losses
France:
158,400 killed and wounded
Prussia:
23,100 killed and wounded
Spain:
3,000 killed and wounded
Habsburg monarchy:
148,000 killed and wounded
Great Britain:
26,400 killed and wounded
Dutch Republic:
14,630 killed and wounded
Savoy-Sardinia:
7,840 killed and wounded
Total: 750,000 dead or wounded

The War of the Austrian Succession, 1740 to 1748, was a conflict between the European great powers, fought primarily in Europe, the Atlantic Ocean and Mediterranean Sea. Related conflicts include King George's War, the War of Jenkins' Ear, the First Carnatic War, and the First and Second Silesian Wars.

Its immediate cause was the right of Maria Theresa to inherit Austria. This was challenged by a coalition between France, Prussia, and Bavaria, while Maria Theresa was backed by Great Britain, the Dutch Republic, and Hanover, collectively known as the Pragmatic Allies. The conflict later drew in other participants, including Spain, Savoy, Saxony, Sweden, and Russia.

Fighting began when Prussia occupied the wealthy Austrian province of Silesia in December 1740. Neither side was able to achieve a decisive victory and despite success in the Austrian Netherlands, by early 1748 France was close to bankruptcy due to the cost of the war and a crippling British naval blockade. This led to the Treaty of Aix-la-Chapelle in October which confirmed Maria Theresa in her titles, but many signatories were unhappy with the terms. In return for vast expenditure, France gained very little, although their Spanish ally made minor gains in Italy and repelled a British invasion of South America.

British insistence that Austria cede Silesia to Prussia as part of the peace undermined the long-standing Anglo-Austrian Alliance, as Austria felt it had received little benefit from the enormous British subsidies paid to it during the war. This led to the realignment known as the Diplomatic Revolution, and ultimately the outbreak of the Seven Years' War in 1756.