The constitution gives only the power to make rules for governing the armed forces. congress the senate the house military leaders

The US Constitution gives Congress the power to raise an army and support a Navy.

So, Congress is partially correct.

But the President is also the Commander in Chief of the Military and the Department of Defense has rule making authority.

So, Congress and the President/Military Leaders.

The Constitution gives only Congress the power to make rules for governing the armed forces.

Explanation:

Section 8, Article II of the U.S. Constitution explicitly gives Congress a series of powers toward the military branches of the U.S., including the power to raise and support federal armies, to create and maintain a navy, to make rules for the regulation of the land and naval forces, and to organize, arm discipline and govern the militia.

Furthermore, the section also provides that Congress can make all laws "necessary and proper" for carrying into execution those powers, and this includes to make rules governing the armed forces.

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