The Kremlin has rejected the prospect of peace talks, despite losing territory it held in Ukraine over the past week.
Ukrainian forces made significant advances in the northeast, with 6-thousand square kilometres of the country retaken from Russian control.
However, Moscow remains adamant it will achieve its ‘special military operation’ goals in Ukraine.
Dr Patrick Bury is a senior lecturer in security at the University of Bath, and a former NATO analyst.
He says Ukrainian forces caught the Russian army off-guard after an expected attack in the south was re-directed to the northeast