Answer:
Ethan Allen and Green Mountain Boys
Step-by-step explanation:
The leader and his men that seized Fort Ticonderoga and Fort Crown Point because the forts contained a large number of military supplies were: ETHAN ALLEN and GREEN MOUNTAIN BOYS
Ethan Allen and his group of men, otherwise known as Green Mountain Boys on May 10 1775 captured Fort Ticonderoga and later nearby Fort Crown Point, the following day. The cannons and other armaments that were captured by the American soldiers at Fort Ticonderoga were later transported to Boston in the fight at siege of Boston.
Other American leader alongside Ethan Allen is Benedict Arnold.