MORTAR MAN U.S. Navy Seaman Errol Stringfellow applies mortar to blocks as he helps build a community hall and disaster response center in Te'ekiu, Tonga, Nov. 30, 2013. Stringfellow is a builder constructionman assigned to Naval Mobile Construction Battalion 3's construction civic action detail in Tonga. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 793501-U-JLU53-118.jpg Photo Gallery