if the president sends the military to fight another country against the wishes of the congress, how would congress try to stop?

EASY NOTHING BECAUSE WERE BUILT DIFERENT

Explanation:

The Removal Power

Clause 2. He shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two thirds of the Senators present concur; and he shall nominate, and by and with the Advice and Consent of the Senate, shall appoint Ambassadors, other public Ministers and Consuls, Judges of the supreme Court, and all other Officers of the United States, whose Appointments are not herein otherwise provided for, and which shall be established by Law: but the Congress may by Law vest the Appointment of such inferior Officers, as they think proper, in the President alone, in the Court of Law, or in the Heads of Departments.