Putin’s advance on Ukraine’s second city was halted in March, but its defenders sense another offensive is looming
In the thick pine forests on the outskirts of Kharkiv, Konstantin was watching over his troops as they inspected their weapons.
Some were greasing shells from the 1970s, preparing them to be used for an even older 57 mm AZP S-60 anti-aircraft gun developed just after the second world war.
