Who has the power in the US government to declare war?

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Answer = The Congress

It is a common mistake to think that the president of the US can declare war. This is incorrect.
According to the U.S. Constitution, only Congress has the power to declare war on another sovereign nation.
According to Article I , Section 8: "The Congress shall have Power ... To declare War, grant Letters of Marque and Reprisal, and make Rules concerning Captures on Land and Water; To raise and support Armies, but no Appropriation of Money to that Use shall be for a longer Term than two Years; To provide and maintain a Navy; To make Rules for the Government and Regulation of the land and naval Forces; To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions; To provide for organizing, arming, and disciplining, the Militia, and for governing such Part of them as may be employed in the Service of the United States, reserving to the States respectively, the Appointment of the Officers, and the Authority of training the Militia according to the discipline prescribed by Congress ...".
The US President, however, has the power to wage war.

First answer by Vtel57. Last edit by Sakshamshail. Contributor trust: 4 [recommend contributorrecommended]. Question popularity: 31 [recommend question].