Gen. Mark Milley honored the 20-year anniversary of the Sept. 11, 2001 attacks Saturday, reflecting on the sacrifices made in response to the deadly day and assuring Americans “your sacrifice was not in vain.”

Gen. Mark Milley honored the 20-year anniversary of the Sept. 11, 2001 attacks Saturday, reflecting on the sacrifices made in response to the deadly day and assuring Americans “your sacrifice was not in vain.”