Owing to the frequent depredations made by the Indians, the Royal Greens, Butler's Rangers, and the independent company of Alexander McDonald, upon the frontiers, destroying the innocent and helpless as well as those who might be found in arms, Congress voted that an expedition should be sent into the Indian country. Washington detached a division from the army under General John Sullivan to lay waste that country. The instructions were obeyed, and Sullivan did not cease until he found no more to lay waste. The only resistance he met with that was of any moment was on August 29, 1779, when the enemy hoping to ambuscade the army of Sullivan, brought on the battle of Chemung, near the present site of Elmira. There were about three hundred royalists under Colonel John Butler and Captain Alexander McDonald, assisting Joseph Brant who commanded the Indians. The defeat was so overwhelming that the royalists and Indians, in a demoralized condition sought shelter under the walls of Fort Niagara. The lower Mohawk Valley having experienced the calamities of border wars was yet to feel the full measures of suffering. On Sunday, May 21, 1780, Sir John Johnson with some British troops, a detachment of Royal Greens, and about two hundred Indians and Tories, at dead of night fell unexpectedly on Johnstown, the home of his youth. Families were killed and scalped, the houses pillaged and then burned. Instances of daring and heroism in withstanding the invaders have been recorded. Sir John's next achievement was in the fall of the same year, when he descended with fire and sword into the rich settlements along the Schoharie. He was overtaken by the American force at Klock's Field and put to flight.