The US started out as colonies of what

The Thirteen Colonies, also known as the Thirteen British Colonies or the Thirteen American Colonies, were a group of British colonies on the Atlantic coast of North America founded in the 17th and 18th centuries which declared independence in 1776 and formed the United States of America.

Explanation:

you : ) : ) : )

free points always

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.