What is the purpose of the phrase "in Order to form a more perfect Union,
establish Justice, [and] insure domestic Tranquility" in the U.S. Constitution's
preamble?
We the People of the United States, in order to form a
more perfect Union, establish Justice, insure domestic
Tranquility, provide for the common defence, promote the
general Welfare, and secure the Blessings of Liberty to
ourselves and our Posterity, do ordain and establish this
Constitution for the United States of America.
-U.S. Constitution, Preamble¹
nd Records Administration

What is the purpose of the phrase in Order to form a more perfect Union establish Justice and insure domestic Tranquility in the US Constitutions preamble We th class=