What was the main purpose of the Declaration of Independence?

The main purpose of the Declaration of Independence was indeed to announce independence from Britain. This historic document, adopted on July 4, 1776, articulated the American colonies' intention to sever political ties with Great Britain, presenting a philosophical justification for this decision. It expressed the colonists' grievances against King George III and articulated fundamental principles such as the rights to life, liberty, and the pursuit of happiness, emphasizing the belief that governments derive their power from the consent of the governed.

By declaring independence, the document also served to unite the colonies in their quest for freedom, making it clear their intention to operate as an independent nation. This marked a pivotal moment in American history, laying the groundwork for the creation of a new nation based on democratic ideals. The other options represent important concepts in American history, but they do not capture the primary goal of the Declaration of Independence itself. For example, it does not outline the Constitution, propose a new form of government, or declare war, although those themes are related to the overall context of the period.