Pentagon hampered Capitol riot response -U.S. official

"The Secretary of the Army's memorandum to me required that a concept of operation be submitted to him before the employment of a Quick Reaction Force," said Walker, adding "I found that requirement to be unusual."

Walker and other U.S. officials testified before a joint hearing conducted by the U.S. Senate Homeland Security and Senate Rules committees titled "Examining the January 6 Attack on the U.S. Capitol, Part II."