A Ukrainian brigade that vows to "destroy Russian troops" simulates a skirmish in the woods near Kyiv, as the country pushes ahead with plans for a counteroffensive. In a glade of pine trees, reconnaissance troops from the Bureviy brigade, playing the "enemy," cover their faces in camouflage makeup and balaclavas, don yeti-style suits and roll in marsh water to blend in with their surroundings. "It will not be easy, but soon we will succeed", a soldier who gives his name as David says - "it is a matter of time". IMAGES AND SOUNDBITES