Defense Secretary Ash Carter is departing as President Barack Obama's top defense advisor after nearly two years in the post, during which he led initiatives to modernize and strengthen the department.
Marine Cpl. Michael Pimenidis provides security with an M4 carbine during an exercise at Marine Corps Base Camp Butler, Okinawa, Japan, Jan. 16, 2017. Marine Corps photo by Cpl. Darien J. Bjorndal
The MQ-1 Predator and MQ-9 Reaper continue to shape the battle space in the campaign to defeat the Islamic State of Iraq and the Levant.
Year in Photos displays this year’s most compelling military images of operations, humanitarian efforts, training, defense leaders, athletes and lifestyle.
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Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, speaks with Army Gen. Curtis M. Scaparrotti, Supreme Allied Commander Europe, before trilateral talks with Turkish Chief of Defense Gen. Hulusi Akar at NATO Headquarters in Brussels, Jan. 17, 2017. The two men were participating in the alliance Military Committee meeting. DoD photo by Army Sgt. James K. McCann
Dunford Says Transition to Trump Administration Going Smoothly Story | Flickr Album | Travels | Special Report

Operation Inherent Resolve - Targeted Operations Against ISIL Terrorists
Military Strikes Continue Against ISIL Terrorists in Syria, Iraq Story | Special Report

U.S. Army M1A2 tank belonging to the 1st Battalion, 68th Armor Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division.
Rotational Brigade Fires First Tank-Training Rounds in Europe Story | Special Report

Undersecretary of Defense for Acquisition, Technology and Logistics Frank Kendall is greeted by Steve Wert, Battle Management program executive officer, on the flight line at Hanscom Air Force Base, Mass., Aug. 30. Kendall came to Hanscom to attend meetings at the Massachusetts Institute of Technology’s Lincoln Laboratory. (U.S. Air Force photo by Jerry Saslav)
Defense Acquisition Chief Lays Out Hard-Won Lessons Story

An Iraqi squad leader explains the squad movement tactics during assault movement training at Al Asad Air Base, Iraq, Jan. 13, 2017. Training at building-partner-capacity sites is an integral part of Combined Joint Task Force Operation Inherent Resolve’s effort to train Iraqi security forces personnel to defeat the Islamic State of Iraq and the Levant. Army photo by Sgt. Lisa Soy
Iraqi Forces Liberate Mosul University From a Deeply Entrenched ISIL Story | Transcript | Special Report

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SITREP: Wounded Airman Completes Back-to-Back Tours, Fleet Week Announced & More
Tech. Sgt. Jason Caswell stands in a C-130 hangar at Bagram Airfield, Afghanistan, Jan. 5, 2017. After a sports injury in 2010, Caswell underwent a year of surgeries, two years of painful limb-recovery therapy, followed by physical therapy. In October 2014, his limb still hadn’t healed and began to worsen so Caswell elected to amputate his injured leg. Air Force photo by Staff Sgt. Katherine Spessa
From the military services and around the DoD, here's your SITREP for Thursday, Jan. 19, 2017.
Military Medicine Expanding Options for Combat Casualties
Osseointegration, a process which attaches a prosthetic limb directly to the skeleton, can be an alternative option to traditional socket-based prosthetics for qualified patients. It is currently undergoing clinical trials at Walter Reed National Military Medical Center in Bethesda, Maryland. Navy photo by MC2 Joshua D. Sheppard
Military health experts are collaborating with civilian researchers on an alternative to socket-based prosthetics.

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