Heiko Porval, a training nurse, speaks to Estonian

Heiko Porval, a training nurse, speaks to Estonian medical personnel and U.S. combat medics attached to 2nd Battalion, 8th Cavalry Regiment, 1st Brigade, 1st Cavalry Division, about skill sets with advanced life support on Thursday, Nov. 13, 2014. AED and CPR training serve as yet another opportunity for both Estonian and U.S. militaries to train as a part of Operation Atlantic Resolve, a multinational combined arms exercise to enhance multinational interoperability, strengthen relationships among allied militaries, contribute to regional stability, and demonstrate the U.S. commitment to NATO. (U.S. Army Photo by Staff Sgt. Ray Boyington)