- From a Ukrainian point of view, there is a risk that the units may be cut off in eastern Ukraine.

In such cases, it is a military defeat.

If, on the other hand, they succeed, it can be a decisive success, says Jörgen Elfving.

Additional supplies of munitions from the West are also important to the Ukrainian resistance, he adds.

But the question is how ready the Russian forces are for an expanded offensive in the east.

- They have limited resources, because most of the Russian units are undergoing recovery and reorganization, he says and continues:

- Does the Russian side have any attacking power after the previous battles or will there be some half-hearted efforts?

In the clip, you hear Jörgen Elfving talk about three strategically important places in eastern Ukraine.