Photo: Soldier for a day

Nicole Vandall tries to squeeze on a small army helmet on her sister Kayla Collyer-Platzer Monday in preparation for their flight in a CH-47 Chinook helicopter. Collyer-Platzer, 15, who has been diagnosed with Hodgkin's lymphoma, was treated to a day in the life of a soldier at Fort Greely U.S. Army Base near Delta Junction. Vandall is a first lieutenant at Fort Greely.

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John Wagner / The Associated Press