In 1745 , William Pepperrell of New England led a colonial expedition , supported by a British fleet under Commodore Peter Warren , against the French fortress of Louisbourg on Cape Breton Island off Canada .
Britain did not attempt any additional attacks on Spanish possessions .
In 1745 , William Pepperrell of New England led a colonial expedition , supported by a Britain fleet under Commodore Peter Warren , against the French fortress of Louisbourg on Cape Breton Island off Canada .
Britain did not attempt any additional attacks on Spanish possessions .