Sir Ralph Abercromby attacks San Juan, Puerto Rico, in what would be one of the largest invasions of the Spanish territories in the Americas.

The Battle of San Juan was an ill-fated British assault in 1797 on the Spanish colonial port city of San Juan in Puerto Rico during the 17961808 Anglo-Spanish War. The attack was carried out facing the historic town of Miramar.

Sir Ralph Abercromby (sometimes spelt Abercrombie) (7 October 1734 – 28 March 1801) was a Scottish soldier and politician. He twice served as MP for Clackmannanshire, rose to the rank of lieutenant-general in the British Army, was appointed Governor of Trinidad, served as Commander-in-Chief, Ireland, and was noted for his services during the French Revolutionary Wars.