Arizona Army National Guard Col. Christopher Sandison, 198th Regional Support Group brigade commander, speaks to Soldiers and guests during a change of command ceremony for 198th RSG Headquarters and Headquarters Company Jan. 8, 2018 at Papago Park Military Reservation in Phoenix. During the ceremony, the company bid farewell to their outgoing commander Capt. Kimberly C. Kennedy and welcomed incoming commander Capt. Janet D. Baca. (Arizona Army National Guard

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