On February 25, 1643, the Pavonia Massacre took place. Dutch colonists killed about 120 Algonquin Native Americans at Communipaw. From the article:
"A little-known but bloody episode on the New Jersey side of the Hudson River enraged and united the rival Native American tribes throughout New Netherland against the Dutch colonists and their corporate governorship. This war nearly ended the Dutch East India Company’s colonial experiment in North America.
Today, historians call this event Kieft’s War.
In 1642, tribal warfare drove members of the Tappan and Wecquaesgeek tribes to seek protection in Dutch settlements. The two tribes built camps in Communipaw village, a Dutch community and part of the Pavonia colony stretching from the Hudson shoreline to Bergen Hill. Today such groups would be considered refugees.
Governor Willem Kieft grew nervous at the influx of Native Americans in New Amsterdam and Pavonia and began to suspect that these refugees were the vanguard of a much larger Native American uprising or assault. Knowing that the Dutch East Indian Company and its European settlers could never match the Native Americans in arms or men, Kieft decided to launch a preemptive attack.
On the night of February 25, 1643, eighty Dutch soldiers sailed across the Hudson River from New Amsterdam and stormed the Native American camps at Pavonia. The Dutch force was indiscriminate with its military action, slaughtering women and children. A 19th century historian, John Romats Brodhead painted a graphic picture, two hundred years later:
“Warrior and squaw, sachem and child, mother and babe were alike massacred. Daybreak scarcely ended the furious slaughter. Mangled victims, seeking safety in the thickets, were driven into the river, and parents rushing to save their children, whom the soldiery had thrown into the stream, were driven back into the waters and drowned before the eyes of their unrelenting murderers.”
David De Vries, a prominent citizen in New Amsterdam and a political adversary of Governor Kieft recounted hearing the sounds of the massacre from his hearth across the Hudson River in New Amsterdam:
“I heard a great shrieking, and I ran to the ramparts of the fort, and looked over to Pavonia. Saw nothing but firing, and the shrieks of the natives murdered in their sleep.”
The returning soldiers bragged of their exploits, taking special delight in detailing the killing of their sleeping “enemies.” Between eighty and one hundred Native Americans died at the hands of the Dutch at the Pavonia Massacre.
This nocturnal assault on the left bank of the Hudson River would unite the squabbling tribes of New Jersey, the Hudson River, and Long Island against the Dutch settlers.
Kieft’s War had begun."