Russia's focus on an offensive in the Donestk and Luhansk region is a "tacit admission" that it is struggling to maintain more than one axis of advance, the UK's Ministry of Defence says.
Units which have suffered heavy losses have been forced to return to Russia and Belarus to resupply and reorganise which has placed pressure on "Russia’s already strained logistics", it says.
The MoD adds that Russian forces will likely compensate for reduced ground manoeuvre capability through mass artillery and missile strikes.
http://www.bbc.co.uk/news/live/world-europe-60923158