During King Philip's War, Abraham took part in the "Narragansett Swamp Fignt", as a 23-year-old Sargeant.  He was wounded during the battle.  The settler soldiers won the battle against the indians under tremendous hardship.  The men camped overnight in the snow without blankets.  The next day they marched 14 miles without food or rest, fought an intense battle hand-to-hand against 3,000 indians in a fortified log fort in the swamp, and turned around without food or rest and marched out through the swamp during a snow storm at night.  "There was no question but that the Great Swamp Fight was the turning point in the King Philip's War."  Abraham was one of 300 men from Connecticut under Major Robert Treat, as part of a total of 985 men in the battle under the over-all command of Josia Winslow.