 Complete the following phrase:  In May 1775 Ethan Allen and his Green Mountain Boys met in Castleton with Benedict Arnold to plan their next days attack on Fort Ticonderoga, west, on the New York side of Lake Champlain. Their successful capture of the fort was a holding action that lasted two years until the British launched a powerful sweep southward on Lake Champlain. The battle at nearby Hubbardton, followed by battles at Bennington and 