U.S. and Lithuanian personnel continued the complicated recovery efforts Thursday of four U.S. soldiers missing in swampy terrain in Lithuania.

Soldiers from NATO countries attend a military exercise at the Training Range in Pabrade, 38 miles north of the capital Vilnius, Lithuania, in 2016. (Mindaugas Kulbis/AP) U.S. and Lithuanian ...

Military personnel watch recovery efforts Thursday of four U.S. soldiers whose M88 Hercules was found submerged under several meters of water in a swamp near a training area near Pabadre ...