Ukrainian troops train in trenches on Belarus border

STORY: According to Volyn Border Guard unit official, Ukraine follows the joint Russian and Belarussian drills taking place on the opposite side of the border.

Ukrainian President Volodymyr Zelenskiy warned on Tuesday (January 10) that Russia was "gathering forces for another escalation" of the nearly 11-month war between the two countries.

Ukraine's top general warned in December that one of the possible directions of a new assault could be Belarus, where Ukraine's military estimates the presence of 15,000 Russian troops, while military analysts put the figure at 10,000 - 12,000.