Ukraine has agreed to a peace deal that would end its war with Russia, according to a U.S. official, with minor details still to be resolved. The agreement was discussed in Abu Dhabi, where U.S. Army Secretary Dan Drisc, along with the Ukrainian delegation, met with Russian officials, according to the official. The diplomatic efforts followed the leak of a 28-point peace plan proposed by the Trump administration, which sparked concerns among European leaders and U.S. lawmakers.