In 1792–3, the Austrian and Prussian armies invading France had numbered only 80,000 men, but were confronted by 220,000 Frenchmen under arms. In January 1814 Napoleon faced a total of 957,000 Allied troops with fewer than 220,000 men in the field – 60,000 of whom under Soult and 37,000 under Suchet were fighting Wellington’s Anglo-Spanish-Portuguese army in the south-west of France and 50,000 under Eugène were defending Italy.

