Kyiv's troops are struggling to hold territory in Russia's Kursk region and may be forced to retreat, reports say.

Moscow's forces have advanced in Ukraine's Zaporizhzhia region, as the U.S. and Russian leaders are expected to speak on Tuesday.

Nowhere, outside of the war in Ukraine, has Russia proved so determined ... In just one year, such deaths in the Sahel surged by about 40 percent. Map showing countries currently ruled by military ...