Keywords: US Navy 110719-F-ET173-074 Hospitalman Ronald Lavalle, left, Peruvian navy Lt. Mariann Rossi, Canadian army Master Cpl. Joan Flecknell, and Canadia.jpg en ACAJUTLA El Salvador July 19 2011 Hospitalman Ronald Lavalle left Peruvian navy Lt Mariann Rossi Canadian army Master Cpl Joan Flecknell and Canadian army Capt Alex Vo perform dental procedures during a Continuing Promise 2011 community service medical event at the Polideportivo medical site Continuing Promise is a five-month humanitarian assistance mission to the Caribbean Central and South America U S Air Force photo by Staff Sgt Alesia Goosic/Released 2011-07-19 110719-F-ET173-074 Navy http //www navy mil/view_image asp id 104436 U S Air Force photo by Staff Sgt Alesia Goosic PD-USGov-Military-Navy Images from US Navy location Acajutla El Salvador Navy of Peru |