The Rhode Island State Navy was the first colonial or state navy established after the American Revolutionary War began in April 1775 with the Battles of Lexington and Concord. On the following June 15, the $3 authorized the acquisition of two ships for the purpose of defending the colony's trade. The state's ships were generally used for defensive operations within Narragansett Bay, although some prizes were taken. The state was also one of the first to authorize privateering.