Utilitiesman Constructionman Matthew Konopka, assigned to Naval Mobile Construction Battalion (NMCB) 1, vibrates concrete during the construction of the Walung Health Clinic in Walung, Kosrae, May 17, 2017. NMCB 1 provides expeditionary construction and engineering support to expeditionary bases and responds to humanitarian assistance disaster relief requests. ( Navy Combat Camera photo by Information Systems Technician 1st Class Ledget Glover III)

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