U.S. Navy Lt. Cmdr. Clarence Tang performs a tooth

U.S. Navy Lt. Cmdr. Clarence Tang performs a tooth extraction at the Expeditionary Medical Unit in Puerto Barrios, Guatemala, April 11, 2018, during Continuing Promise 2018. U.S. Naval Forces Southern Command/U.S. 4th Fleet has deployed a force to execute Continuing Promise to conduct civil-military operations including humanitarian assistance, training engagements, and medical, dental, and veterinary support in an effort to show U.S. support and commitment to Central and South America. (U.S. Army photo by Spc. Brandon Best)