The White House said Monday it now estimates that just since December Russia has suffered 100,000 casualties, including 20,000 killed, as Ukraine has rebuffed a heavy-assault by Russian forces in eastern Ukraine.
In what has become a grinding war of attrition, the fiercest battles have been in the eastern Donetsk region, where Russia is struggling to encircle the city of Bakhmut in the face of dogged Ukrainian defense.
