The power to declare war is a power that belongs to Congress.
One Constitutional power specifically delegated to the federal government is the power to declare war.
The power of the national government to declare war is an example of an expressed power. Another example is the power to levy taxes.
The Queen
to declare war
The Legislative Branch (Congress) has the power to declare war.
Expressed Power
central government had the power to declare war and negotiate peace
central government had the power to declare war and negotiate peace
The ruling government of sovereign states.
In the United States government, Congress has the power to declare war on other nations.
Legislative
In the U.S., the legislative branch of government is responsible, and has the constitutional powers, to declare war.