Russian army has ‘consistently underperformed’ in Ukraine, says retired US lieutenant colonel

We spoke to retired Lieutenant Colonel Alexander Vindman who was the top Ukraine expert on the US National Security Council.

He was a witness in Donald Trump’s first impeachment trial, revealing how Mr Trump tried to pressure Ukraine’s President Zelenskyy to investigate Joe Biden’s son, Hunter.

We asked Mr Vindman what he thought a Ukrainian counter-offensive could realistically achieve this year.