Russia has been accused of double crossing Ukraine as officials moved to pull back on an agreement to free captured troops from the Azovstal steelworks. Moscow had agreed to exchange hundreds of members of the Azov Regiment – the Ukrainian unit holed up in the Soviet-era steel mill – in a prisoner swap earlier this week. However Russia’s parliament has now announced it will vote on a resolution to ‘prevent the exchange of Nazi war criminals’ today – with some members calling for the Azov troops to be executed. Ukraine’s deputy defence minister Hanna Malyar dismissed the threats as ‘internal...