After the Allies declared war on France (War of the Second Coalition) and had regained territories in Italy that Napoleon had previously secured in his 1796-1797 campaign, Napoleon to launch a surprise assault on the Austrian army stationed in the Cisalpine Republic. Based on the assumption the Austrians would never expect Napoleon’s large force to be able to traverse the Alps, he chose that as his route. He selected the shortest route through the Alps, the Great St Bernard Pass, which would enable him to reach his destination as quickly as possible.
On 15 May 1800, Napoleon and his army of 40,000—not including the field artillery and baggage trains—(35,000 light artillery and infantry, 5,000 cavalry) began the arduous journey through the mountains. During the five days spent traversing the pass, Napoleon’s army consumed almost 22,000 bottles of wine, more than a tonne and a half of cheese, and around 800 kilograms of meat.
Following his crossing of the Alps, Napoleon commenced military operations against the Austrian army.
