Petty Officer 3rd Class Christopher Baca, assigned to Naval Mobile Construction Battalion 17, uses a heavy timber drill to help construct a 30-foot observation tower at the Construction Battalion Center training facility during Unit Level Training and Readiness Assessment called Operation Sea Hornet in Port Hueneme, Calif., on June 15, 2011. Operation Sea Hornet provides training ranging from classroom to small unit leadership that will assist in preparing for mobilization to various deployment areas of responsibility.