for a second weekend. is trumpism taking root in canada? and queen elizabeth just announced a new title for camilla. we re live at buckingham palace with all the details. announcer: live from cnn center, this is c cnn newsroom with kim brunhuber. u.s. officials now believe russian president vladimir putin has assembled about 70% of the military force he needs to launch a full-scale invasion of ukraine. the latest satellite images show russian forces gathering force in belarus.ed less than 50 kilometers from ukraine s northern border. u.s. troops have began arriving in poland to help boost nato s defenses there. american forces have also been sent to romania and germany. france s president is heading to moscow on monday to try to discourage further russian aggression. cnn s melissa bell is standing by live for us in kyiv.