U.S. Army Sgt. Matthew Jouzitis, a howitzer section

U.S. Army Sgt. Matthew Jouzitis, a howitzer section chief with Bravo Company, 1st Battalion, 7th Field Artillery Regiment, instructs Iraqi soldiers on how to properly use a gunner quadrant as part of the advise and assist efforts in Al Taqaddum, Iraq, Dec. 15, 2015. The gunner quadrant is used to precisely adjust elevations on an artillery weapon system making it more accurate. Coalition personnel assigned to Task Force Al Taqaddum (TFTQ) provide advise and assist teams in support of Combined Joint Task Force – Operation Inherent Resolve, which focuses on defeating the Islamic State of Iraq and Levant in the U.S. Central Command area of responsibility. (U.S. Marine Corps photo by Sgt. Rick Hurtado / Released)