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 General Assembly 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.
Following the outbreak of the American Revolutionary War, the Royal Navy sent the HMS Rose, a frigate commanded James Wallace as captain to put a halt to smuggling out of Newport. On June 13, 1775, Nicholas Cooke, the colony's lieutenant governor, officially asked Wallace to return two ships he had captured. Two days later, the General Assembly authorized the Committee of Safety to acquire two ships for the purpose of defending the colony's trade, established a committee to oversee the acquisition and fitting of the ships, and appointed Abraham Whipple as commodore of the fleet. Two sloops were purchased, called Katy and Washington. Commodore Whipple reported that the same day, June 15, he captured a tender of the Rose. The navy was organized under, and subject to the direction of, the state's militia generals.