Which document is used as the basis for drafting and enforcing all federal laws governing the United States?

The Constitution serves as the foundational legal document for the United States, establishing the framework for the government and delineating the powers and responsibilities of its branches. It lays out the principles of federal law and governance, making it the supreme law of the land. All federal laws are derived from the powers granted by the Constitution, and any legislation must align with its principles.

The Bill of Rights, while an integral part of the Constitution, specifically outlines individual rights and liberties and does not serve as the overarching document for federal law creation and enforcement.

United States Title Code 10 pertains to the armed forces and is a part of the federal statutory law but is not the basis for all federal laws. It provides specific regulations for military operations and governance.

The Uniform Code of Military Justice, on the other hand, governs the conduct of members of the military. It is crucial for maintaining order and discipline within the armed forces but does not serve as a foundation for all federal laws in the country.

Thus, the Constitution is the correct answer as it underpins all federal law and the structure of U.S. governance.