With Ukraine set to mark its independence from Soviet rule in 1991 and six months since Russian forces invaded, President Volodymyr Zelenskiy warned of the risk of "brutal strikes" by Russia and said any attack would provoke a powerful response.
Zelenskiy, who has led his country's resistance since Russian troops poured over the border on Feb. 24, also said Ukraine would restore its rule over the Crimea region - annexed by Russia in 2014 in a precursor to this year's invasion.
