A Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





A Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. The “ATO” design on the tattoo stands for “Anti-Terrorist Operation”, the term Ukraine uses to describe the eastern conflict zone. (Photo by Gleb Garanich/Reuters)





A Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian servicemen ride atop armored personnel carriers (APC) during a military drill in Kherson region, Ukraine, August 12, 2016. (Photo by Reuters/Stringer)





Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian servicemen are seen at their positions on the front line near Avdeyevka, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian servicemen are seen at their positions on the front line near Avdeyevka, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian serviceman is seen at his position on the front line near Avdeyevka, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian servicemen are seen at their positions on the front line near Avdeyevka, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





A Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)





A Ukrainian serviceman is seen at his position on the front line in Krasnogorivka near Donetsk, Ukraine, August 12, 2016. (Photo by Gleb Garanich/Reuters)