Builder Constructionman Dylan Simmons,from Unadilla, NY., clears a the corner the corner of a building during a field training exercise with Naval Mobile Construction Battalion (NCB) 133. Seabees around the world will take part in a year-long celebration in 2017 to commemorate the group's 75-year anniversary in March. The theme of the celebration is "Built on History, Constructing the Future. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ignacio D. Perez/Released)

Photo by: Petty Officer 2nd Class ignacio  |  VIRIN: 170609-N-ZY182-3994.jpg