Ukraine’s war diplomacy has entered a decisive phase as U.S. officials signal that President Zelensky has tentatively agreed to President Trump’s emerging peace plan. With troop-cap terms reportedly narrowed to 800,000 soldiers, negotiations in Abu Dhabi led by Army Secretary Dan Driscoll show unusual momentum. Sensitive territorial decisions now await direct talks between Trump and Zelensky in Washington. As Moscow warns it won’t accept terms that ignore its demands, the coming days could redefine Ukraine’s borders and the war’s trajectory.