Top Turkish, Russian diplomats discuss Ukrainian settlement -- sources / Rubio, Lavrov discuss further steps toward Ukrainian settlement -- Department of State / PREVIEW: Meeting on Ukrainian settlement to be held in London / Coming to terms on key elements of Ukrainian settlement proving difficult -- Lavrov / Kyiv's buried treasure. An on-the-ground look at the Ukrainian mineral deposits Trump wants to get his hands on / Exploration of Ukraine's rare metal deposits would take years -- expert / Russian military destroys ancient Ukrainian burial mounds, report finds / Researchers document Russian destruction of Ukrainian archaeological sites / Suspicions haunt grieving Ukrainian village / Rats and Mud Compound the Miseries of Life in Ukraine's Trenches