Geolocation shows that the Russian forces have already started to encircle Boryspil.
Boryspil is a very important transportation and logistics hub for the Ukrainian forces in Kharkiv region, located on the left bank of the Oskil River, north of Kupiansk, and northeast of Izyum.
If the Russians capture Boryspil, they will be able to control the left bank of the Oskil River and also have a good forward base for attacking Izyum.
Original article: www.toutiao.com/article/1850110367364160/
Statement: This article represents the personal views of the author.