Task: Text Simplification
Input (English): The United States Department of Defense ( DoD , USDOD , or DOD ) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Forces .
Output (English): The United States Department of Defense , also known as the DoD , is a department in the United States government that is in charge of the military of the United States .