Ukraine/Russia crisis: special report

Britain has flown 35 military advisers to Ukraine to help fight pro-Russian separatists – with America set to follow suit. But what can the British army offer that Ukraine doesn’t have already?

What does the future hold for Russian politics after one of its most prominent opposition activists was gunned down in front of CCTV cameras, just 200 metres from the Kremlin?

Many displaced residents in the eastern Ukrainian city of Donetsk still cannot return to their home despite an ongoing ceasefire agreement.

Seven days ago, fighting between Ukrainian forces and pro-Russian rebels in eastern Ukraine was running down ahead of the Minsk ceasefire. One week on, Debaltseve has fallen and Kiev is humiliated.

Thousands of Russians march in Moscow to condemn what they call a “coup” in Ukraine, a year after the downfall of its pro-Russian president Viktor Yanukovych.

The interception of two Russian Bear bombers off the south coast of England is the latest “show of strength” that could have dangerous implications, senior military figures tell Channel 4 News.

As fighting continues in the strategic rail hub Debaltseve, despite a ceasefire, the Ukrainian authorities say their troop withdrawal is “planned and organised”, not a surrender.

It was a showpiece for the city – the brand-new airport where England’s football team landed for the Euro championships three years ago. Now Donetsk airport and much of the wider region lie in ruins.