Jim Mattis, United States Secretary of Defense, speaks during a ceremony to commemorate the September 11, 2001 terrorist attacks with U.S. President Donald Trump, not pictured, at the Pentagon in Washington, D.C., U.S., on Monday, Sept. 11, 2017. Trump is presiding over his first 9/11 commemoration on the 16th anniversary of the terrorist attacks that killed nearly 3,000 people when hijackers flew commercial airplanes into New York's World Trade Center, the Pentagon and a field near...
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Jim Mattis, United States Secretary of Defense, speaks during a ceremony to commemorate the September 11, 2001 terrorist attacks with U.S. President Donald Trump, not pictured, at the Pentagon in Washington, D.C., U.S., on Monday, Sept. 11, 2017. Trump is presiding over his first 9/11 commemoration on the 16th anniversary of the terrorist attacks that killed nearly 3,000 people when hijackers flew commercial airplanes into New York's World Trade Center, the Pentagon and a field near Shanksville, Pennsylvania. Photo Credit: Andrew Harrer/CNP/AdMedia
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