breakthrough in the counteroffensive in the last few weeks, bbc correspondents quentin somervell and darren conway, together with the soldiers of the ukrainian armed forces, spent on the front line in the area between kupyansk and liman both cities ukrainian forces retook that in september of last year, but now the military is facing a new deadly threat from russian with mitrons and comedians, fighting in the east of ukraine has intensified. it is here, as the ukrainian military command claims, in these trenches and on these fields that the fiercest battle is unfolding, so the final during in recent days, there has been a lot of activity by the russians in this area. they sent airdrops around the village to get behind me, so now we have to leave before dawn to get to the cops. the russian troops left southern kupyansk almost a year ago, but the enemy has been trying to return here for the past few weeks. the russians managed to advance. here, behind these fields , the soldiers of the 68th yeger brigade are tasked with preventing the enemy from advancing, their positions are attacked by infantry an