The Powhatan war, (1622–44), was a relentless struggle between the Powhatan Indian confederacy and early English settlers in the tidewater section of Virginia and southern Maryland.
So that means that the effect of the Powhatan war was that Most regions in Virginia fell under the settlers’ control.
King Philip's war was an armed conflict in 1675–78 between Indian inhabitants of New England and New England colonists and their Indian allies.
So that means that the effects of King Philip’s War was that The American Indians lost control of most of New England.
The Yamasee or Yemassee War (1715–1717) was a conflict between British settlers of colonial South Carolina and various Native American tribes, including the Yamasee, Muscogee, Cherokee, Catawba, Apalachee, Apalachicola, Yuchi, Savannah River Shawnee, Congaree, Waxhaw, Pee Dee, Cape Fear, Cheraw, and others. Some of the Native American Indian groups played a minor role while others launched attacks throughout South Carolina in an attempt to destroy the colony.
So that means that the effects of the Yamasee War were that The settlers forced many American Indians out of South Carolina.
Hope I helped.