The Battle of Rhode Island was fought during the summer of 1778 and was an unsuccessful attempt to expel the British from Narragansett Bay, although few Colonial casualties occurred. The Marquis de Lafayette called the action the "best fought" of the war. The British were forced to concentrate their forces in New York and consequently left Newport. The French under Rochambeau landed in Newport in 1780, and it became the base of the French forces in the United States for the remainder of the war. The French soldiers behaved themselves so well that, in gratitude, the Rhode Island General Assembly repealed an old law banning Catholics from living in Rhode Island. The first Catholic mass in Rhode Island was said in Newport during this time.