Radio Free Europe/Radio Liberty: Guns of August - fears of full-scale war return as casualties mount in Ukraine

MARYINKA, Ukraine - Framed by a tiny cutout in the fortified bunker, this particular piece of no-man's land is tinted a blood-reddish orange by the setting summer sun. It's hot as hell, and it's about to get hotter. When the sun goes down, the guns start blazing. And all that separates the men at their triggers is a grassy patch of land the size of a soccer field that is heavily mined. If you're a Ukrainian soldier here, you don't need binoculars to observe the enemy - you just look in his direction.