Chelsey Mastalski, the 28th Force Support Squadron outdoor recreation manager, unloads a tree from a truck at Ellsworth Air Force Base, S.D., Nov. 30, 2018. Trees for Troops is an event where community members all over the country donate trees to service members so they can have a free tree for the holidays. (U.S. Air Force photo by Airman 1st Class Thomas Karol)