North Dakota Army National Guard Sgt. Nathan Lynnes, foreground, Sgt. Adam Lynnes, center, and Staff Sergeant Tyler Wuff salute after placing wreaths on grave markers during the annual Wreaths Across America event at Arlington National Cemetery in Arlington, Va., Dec. 16, 2017. Twins Nathan and Adam, along with Wuff, are avenger maintainers assigned to the 1st Battalion, 188th Air Defense Artillery. DoD photo by Sebastian Sciotti Jr.