On October 11th 1776 at Lake Champlain Benedict Arnold was defeated at lake champlain. He and his americans were captured after 2 days on endless battle. He was not happy with his defeat and Americans did not give any credit.

When and how did it happen? It happened on October 11th 1776 they were mostly through the Revolutionary War. They got defeated by getting all subdued/captured it was 15 american fleet ships on that lake. How long did it last? Well it lasted 2 days in total parts of it were very brutal i mean it is a battle.

Who defeated him Guy Carlton governor of Quebec was lost a battle after being attacked benedict arnold was seriously injured that battle. How many were killed over 9,000 were killed or MIA (missing in action) others