as a matter of FACT

Slaveholders in all the colonies lived an uneasy life with their "property" often in revolt or flight:

In 1657 Indians and Negroes attacked Hartford, Connecticut and burned homes.

In 1690 Connecticut towns instituted a 9 o'clock curfew for Indians and Negroes. Some towns passed laws that forbade either group to come out of doors during fires.

In 1727 Indians and Negroes attacked Virginia settlements. Obviously a number of Black men had made common cause with red men.  To the Indian, slavery was unknown before the coming of the White man. Clearly the enemy of both the slave and the Indian was the same, the White man.

When Natchez Indians massacred Whites in 1730 they spared 106 Negroes.

A Boston law forbade Negroes or Indians from carrying a stick or cane, day or night, which could be "fit for ...fighting or anything of that nature."

See "Eyewitness: The Negro in American History by William Loren Katz