Sgt. 1st Class Michael Giarrusso, a 42nd Infantry Division operations NCO (left), and Staff Sgt. Diahann Adepegba, a division intelligence NCO in-charge (right), map out a 10-mile radius of a simulated nuclear blast area in order to identify affected roads and bridges during Ardent Sentry 17 at the 42nd Infantry Division's Troy, armory on April 26, 2017. Ardent Sentry is an annual North American Aerospace Defense and Northern Command (US NORTHCOMM) exercise focused on defense support to civil authorities.

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