After the Stanwix treaty, Anglo-Americans began pouring into the Ohio River Valley for settlement, frequently traveling by boats and barges along the Ohio River. Violent incidents between settlers and Indians escalated into Dunmore's War in 1774. British diplomats managed to isolate the Shawnee during the conflict: the Iroquois and the Lenape stayed neutral. The Shawnee faced the British colony of Virginia with only a few Mingo allies. Lord Dunmore, royal governor of Virginia, launched a two-pronged invasion into the Ohio Country. The Shawnee chief Cornstalk attacked one wing but fought to a draw in the only major battle of the war, the Battle of Point Pleasant.