9/11 Ceremony at Joint Base Pearl Harbor-Hickam, Hawaii

A KC-135 Stratotanker flies over while active duty, Guard and Reserve Airmen gathered Sept. 9, 2011, at Joint Base Pearl Harbor-Hickham, Hawaii, to pay tribute to honor those lost on 9/11. (Defense Department photo/Master Sgt. Cohen A. Young)

9/11 ceremony at Joint Base Pearl Harbor-Hickam, Hawaii

Active-duty, Guard and Reserve Airmen salute during the playing of the National Anthem while participating in a 9/11 tribute ceremony Sept. 9, 2011, at Joint Base Pearl Harbor-Hickam, Hawaii. The formation consisted of three columns to honor the three cities where planes crashed. (Defense Department photo/Master Sgt. Cohen A. Young)

9/11 Ccremony at Joint Base Pearl Harbor-Hickam, Hawaii

Maj. Gen. Randy Shasteen stands at the head of one of three formations comprising active-duty, Guard and Reserve Airmen Sept. 9, 2011, at Joint Base Pearl Harbor-Hickam, Hawaii, to pay tribute to those lost on 9/11. The formation consisted of three columns to honor the three cities where planes crashed. (Defense Department photo/Master Sgt. Cohen A. Young)

Air Force leaders issue Sept. 11 message

(U.S. Air Force graphic/Luke Borland)

Ceremony kicks off NCR leg of 9/11 Ruck March to Remember

Brig. Gen. Jimmy McMillian, the Air Force’s director of security forces, speaks during a wreath laying ceremony at the Pentagon on Aug. 29, 2011. McMillian asked the audience, which was made up of security forces members from across the national capital region, to never forget the memories and sacrifices of fallen security forces Airmen and other Americans. (U.S. Air Force photo/Staff Sgt. Tiffany Trojca)

Ceremony kicks off NCR leg of 9/11 Ruck March to Remember

Staff Sgt. Russell Logan, right, and Brig. Gen. Jimmy McMillian, center, salute during a wreath laying ceremony in Arlington, Va., Aug. 29, 2011. Security forces Airmen from across the national capital region participated in the ceremony, beginning their leg of the 9/11 Ruck March to Remember. McMillian is the Air Force’s director of security forces and Logan is a security forces Airman from the 164th Air Lift Wing with the Tennessee Air National Guard. (U.S. Air Force photo/Staff Sgt. Tiffany Trojca)

Never forget

Senior Airman Danielle Todman and Airman 1st Class Kyle Detwiler post the colors during the 9/11 Patriot Day Ceremony on Sept. 11, 2009, at Kunsan Air Base, South Korea. The ceremony acknowledged the courageous first responders and others who risked their lives to save the victims of Sept. 11, 2001, and servicemembers who have joined the military since these events. (U.S. Air Force photo/Senior Airman Jonathan Steffen)

In respect and honor

Members of the 86th Airlift Wing base honor guard conduct a flag-folding ceremony during the Ramstein Honor Guard Appreciation Day, Sept. 11, 2009, at Ramstein Air Base, Germany. (U.S. Air Force photo/Staff Sgt. Charity Barrett)

Building dedication honors Airman killed on 9/11

Members of the 445th Airlift Wing dedicated its operations building in honor of Maj. LeRoy W. Homer Jr. Oct. 4 at Wright-Patterson Air Force Base, Ohio. Major Homer died Sept. 11, 2001, on board United Airlines Flight 93, when he was serving as the airplane's first officer. (U.S. Air Force photo/Ben Strasser)

Building dedication honors Airman killed on 9/11

Lt. Col. Chris Clark welcomes Ilse Homer prior to the Operations Building Dedication Oct. 4 at Wright-Patterson Air Force Base, Ohio. Ms. Homer is Maj. LeRoy W. Homer Jr.'s mother. The wing dedicated the building in honor of Major Homer's dedicated service as a citizen Airmen. Major Homer had been assigned to the 445th Airlift Wing from 1995 to 2000 and died Sept. 11, 2001, while serving as the first officer on United Airlines Flight 93. Colonel Clark is the 445th Operations Group deputy commander. (U.S. Air Force photo/Ben Strasser)

Remembering Sept. 11 Pentagon victims

Outside the Pentagon, 184 members from each service unveil the Pentagon Memorial Sept. 11. The memorial has 184 benches, each dedicated to a victim of the Sept. 11, 2001, attack -- 59 people aboard American Airlines Flight 77 and the 125 in the building. (Department of Defense photo/Master Sgt. Adam Stump)

Looking back

Retired Lt. Col. Harold Fischer, a fighter ace with 10 confirmed kills, looks out over the city of Seoul, South Korea, Sept. 10. He is touring South Korea with fellow veterans in observance of the Air Force's 60th anniversary. (U.S. Air Force photo/Staff Sgt. Bennie J. Davis III)

Manas Airmen remember Sept. 11

Col. Harrison Smith and the U.S. Ambassador to the Kyrgyz Republic Marie L. Yovanovitch reflect with Airman First Class Jessica Taylor and Staff Sgt. Dustin Woodworth at Manas Air Base, Kyrgyzstan, Sept. 11 at the memorial for Peter J. Ganci, the New York fire chief who gave his life coordinating the rescue response to the World Trade Center attack six years ago. Many locals still refer to the American military base in Kyrgyzstan as Ganci Air Base. The base continues to support the ongoing operations in Afghanistan as a logistics hub for the effort, providing aerial refueling with its squadron of KC-135 Stratotankers and supporting cargo and passenger movement to and from the country. Colonel Harrison is commander of the 376th Air Expeditionary Wing. Airman Taylor is a firefighter with the 376th Expeditionary Civil Engineer Squadron. Sergeant Woodworth is a defender with the 376th Expeditionary Security Forces Squadron. (U.S. Air Force photo/Staff Sgt. Les Waters)

Manas Airmen remember Sept. 11

The Manas Air Base color guard post the American, Kyrgyz, Spanish and French flags during the Sept. 11 remembrance ceremony at Manas AB, Kyrgyzstan. Distinguished visitors from the United States Embassy, including the U.S. ambassador, attended along with dignitaries from the Ministry of Defense and the Manas International Airport where the base is located. Manas AB opened two months after Sept. 11, 2001, and served as a staging base for initial support for Operation Enduring Freedom. Today the base is the premier logistics hub for continued operations in Afghanistan. (U.S. Air Force photo/Staff Sgt. Les Waters)

Ramstein Airmen observe Sept. 11

Brig. Gen. Richard C. Johnston and Airmen assigned to Ramstein Air Base, Germany, salute during the Sept. 11 memorial ceremony at Ramstein Air Base, Germany. The ceremony began at 2:46 p.m. central European time, exactly six years to the minute following the first attack on the World Trade Towers in New York City. General Johnston is commander of the 86th Airlift Wing. (U.S. Air Force photo/Master Sgt. Scott Wagers)

Sept. 11 remembered in Djibouti

Members of the color guard march to the flagpole as Navy petty officers carry a wreath in remembrance of the sixth anniversary of Sept. 11 at Camp Lemonier, Djibouti. The wreath presentation was one of the Sept. 11, 2001, remembrance events sponsored by Combined Joint Task Force-Horn of Africa 2008 Navy chief selectees. (U.S. Navy photo/Petty Officer 2nd Class Regina L. Brown)

Sept. 11 remembered in Djibouti

Members of the color guard stand at attention as Navy Petty Officer 1st Class Arcenet Vazquez speaks after presenting a wreath in remembrance of the sixth anniversary of Sept. 11. The presentation was one of several events at Camp Lemonier, Djibouti, sponsored by Combined Joint Task Force-Horn of Africa 2008 Navy chief selectees. (U.S. Navy photo/Petty Officer 2nd Class Regina L. Brown)

Sept. 11 remembered in Djibouti

Navy Petty Officer 1st Class Arcenet Vazquez and Navy Petty Officer 1st Class Eric Davenport salute during a wreath presentation in remembrance of the 6th anniversary of Sept. 11 at Camp Lemonier, Djibouti. The wreath presentation was one of the remembrance events sponsored by the Combined Joint Task Force-Horn of Africa 2008 Navy chief selectees. (U.S. Navy photo/Petty Officer 2nd Class Regina L. Brown)

Kunsan Airmen remember Sept. 11

Airmen from the 8th Fighter Wing pause for a moment of silence during the Sept. 11, 2001, remembrance ceremony Sept. 11 at Kunsan Air Base, South Korea. The ceremony marked the sixth anniversary of the terrorist attacks in New York City, the Pentagon and Shanksville, Pa. (U.S. Air Force photo/Senior Airman Steven R. Doty)

Kunsan Airmen remember Sept. 11

Airmen from the 8th Fighter Wing render salutes for the raising of the U.S. flag during the Sept. 11, 2001, remembrance ceremony Sept. 11 at Kunsan Air Base, South Korea. The ceremony marked the sixth anniversary of the terrorist attacks in New York City, the Pentagon and Shanksville, Pa. (U.S. Air Force photo/Senior Airman Steven R. Doty)

Kunsan Airmen remember Sept. 11

Tech. Sgt. Jeremy Pickett waits to ring the fire station bell during the Sept. 11, 2001, remembrance ceremony Sept. 11 at Kunsan Air Base, South Korea. The ceremony marked the sixth anniversary of the terrorist attacks in New York City, the Pentagon and Shanksville, Pa. Sergeant Pickett is a firefighter with the 8th Civil Engineer Squadron.(U.S. Air Force photo/Senior Airman Steven R. Doty)

Remembering 9-11

Since Sept. 11, 2001, the Air Force has been continuously called upon to help preserve the nation's way of life and defeat the threat of terrorism. Now, six years later, the Air Force has nearly 40,000 active duty, Guard and Reserve Airmen deployed to more than 20 countries across the globe, supporting the war on terrorism. (U.S. Air Force graphic/Mike Carabajal)

Beams of light

On the fifth anniversary of the 9/11 terrorist attacks, 184 beams of light rise from the courtyard of the Pentagon. The lights are to remember the 184 lives lost when American Airlines Flight 77 crashed into the Pentagon Sept. 11, 2001. (U.S. Air Force photo/Col. Walter Gordon)

Tribute in Light

The "Tribute in Light" memorial is in remembrance of the events of Sept. 11, 2001. The two towers of light are composed of two banks of high wattage spotlights that point straight up from a lot next to Ground Zero. This photo was taken from Liberty State Park, N.J., Sept. 11, the five-year anniversary of 9/11. (U.S. Air Force photo/Denise Gould)