The Italian Kingdom of Piedmont-Sardinia mobilizes its armed forces for war with Austria

The army of the Italian kingdom of Piedmont-Sardinia mobilized this day under the perceived threat of an Austrian invasion. In fact, Piedmont knew full well that they had been promised French assistance should such an incursion take place, if the larger power could generally be seen as the aggressor. Austrian took the bait the following month and mobilized its own army in response.  Within weeks, war began in earnest.  (By John Osborne)